This is the data given. I have to choose which model is best to use. How should I start it off? What is the important aspects to evaluate which is the best model to use? Shall I test for heteroskedasticity and endogeneity first and then determine if the OLS is the best way to use it or not. Also, I thought it was important to have the standard errors to make a good judgement.
MAT 130: Beginning StatisticsTextbook RequirementTriola, M.F. (2010). Elementary statistics (11th ed.). Boston: Pearson
I need initial post and respond to two of my classmatesModeling Population GrowthYou can generally model population growth as either linear by an arithmetic sequence, or exponential by a geometric sequence. These can be defined by one of the general forms:Arithmetic Sequencean = a0 + d∙n where,d is the common difference (change per year for population increase or decrease)n is a natural number indicating the years since the initial perioda0 is the population in the initial periodGeometric Sequencean = a0∙rn where,r is the common ratio (multiple for population increase or decrease per year)n is a natural number indicating the years since the initial perioda0 is the population in the initial periodPost 1: Initial ResponseSuppose you are working as an IT consultant and are known to have keen mathematical skills in addressing real-world situations. You have recently been contacted by a city council to present a plan for a population growth/decline initiative. The council has in recent years experienced considerably unexpected changes in population due to obsolete models and no use of technology. This has left them scrambling to find remedies for the city (e.g., new roads if the population is growing, repurpose vacant lots if the population is declining).You will spearhead this initiative, and you are charged with planning a mathematical model for future use and prioritizing the city council’s use of technology. Your goal is to apply your knowledge of sequences and create an appropriate mathematical model for the city’s population growth/decline. You will also share the technological tools that can be used to employ this model well into the future in the form of a computer algorithm.In planning for your goal, you will want to briefly describe the city population growth/decline scenario and identify what factors might contribute to the growth/decline. This initial stage of planning is critical in creating an accurate mathematical model. You also want to present how your model can be codified as a computer algorithm so that the council’s staff can use it in the future.Draft a detailed response to the council to demonstrate what you propose for more effectively modeling and preparing for population changes in the future.View Unit 5 Discussion Post 1 example.Include all of the following in your response.Provide a narrative introduction to the planning initiative, where you:Briefly describe the situation in which population growth/decline is being considered and modeledState whether you project the population growth/decline to be linear or geometric in natureIdentify at least three factors you believe might be contributing to the unexpected population growth/decline (i.e., birth, disease, innovations, trends, migration)Discuss and prioritize which of these factors you believe has possibly had the greatest impact on the population growth/declineReflect on how that factor may relate to one of the inputs in the modelPresent your proposed mathematical model for how the council estimates the future population each year, using either an arithmetic or a geometric sequence. Clearly state the following:Initial population size, a0Your change variable, d or rThe general equation for your model with these two inputs substituted into the formulaWrite an algorithm that will take as input the number of years (n) since the initial period, and that will output the population size for each year from now until the nth year. Your algorithm must use an iterative operation (such as a while or for-next loop).Post 2: Reply to a ClassmateReview a classmate’s population model scenario, equation, and algorithm. If no other classmate has yet responded, review their model for accuracy by providing an input value for n ≥ 5 and perform a trace of the algorithm.View Unit 5 Discussion Post 2 example.Address the following:Write out the outputs in a trace table.Select two future population estimates (two output values of an) and discuss whether the output produced is appropriate for the scenario. What limitations, or problems, may there be in using this model to estimate the population indefinitely?Based on your assessment of the output and potential limitations of the model, suggest a change to the general formula or algorithm for their sequence to represent a potentially better long-term model for the scenario. (You may consider the factors that were described in the initial planning phase or other biological limitations on growth/decline of populations.)Post 3: Reply to Another ClassmateReview a different classmate’s population model scenario, equation, and algorithm. You will improve their model to account for a potential event that could affect the population growth/decline.Modify your classmate’s population model by adjusting their algorithm with a conditional statement (if-then or if-then-else) for some event that leads the population to slow its growth or decline (or reverse between growth versus decline) at a specific population size (i.e., you choose a specific value of an).View Unit 5 Discussion Post 3 example.Address the following:Copy their original algorithm into your post and insert a conditional operation into an appropriate place to account for this change in the model. (You will need to incorporate a second formula with an updated value for d or r, for use when your conditional operation begins taking effect.)Select an input value for n, large enough so that it will trigger your conditional statement to calculate some population estimates using your revised model, or second formula.Perform a trace of the algorithm using this value of n and write out the outputs in a trace table.Describe and explain the results, commenting specifically in your role as a consultant on how you believe this is now a good long-term modeling algorithm for the scenario.
ASHELY only
1.Find the simple interest on a $400 investment made for 5 years at an interest rate of 7%/year. What is the accumulated amount?A) The simple interest is $140, the accumulated amount is $540.B) The simple interest is $115, the accumulated amount is $515.C) The simple interest is $120, the accumulated amount is $520.D) The simple interest is $125, the accumulated amount is $555.2.If the accumulated amount is $3,720 at the end of 3 years and the simple rate of interest is 8%/year, what is the principal?A) The principal is $3,500.B) The principal is $3,360.C) The principal is $3,000.D) The principal is $3,200.3.Find the accumulated amount A if the principal P = $2,000 is invested at the interest rate of r = 6% per year for t = 6 years, compounded annually.A) The accumulated amount is $3,508.28.B) The accumulated amount is $3,194.16.C) The accumulated amount is $2,837.04.D) The accumulated amount is $2,708.89.4.Find the accumulated amount A if the principal P = $11,000 is invested at the interest rate of r = 5% per year for t = 5.5 years, compounded quarterly.A) The accumulated amount is $14,585.32.B) The accumulated amount is $13,785.93.C) The accumulated amount is $14,100.05.D) The accumulated amount is $14,457.17.5.Determine the simple interest rate at which $1,500 will grow to $1,550 in the 8 months. Round your answers to the nearest tenth of percent.A) The interest rate is 5%/year.B) The interest rate is 4.33%/year.C) The interest rate is 4.76%/year.D) The interest rate is 66.67%/year.E) The interest rate is 3.06%/year.6.Find the present value of $40,000 due in 4 years at the given rate of interest 8%/year compounded monthly.A) The present value is $28,948.67.B) The present value is $29,433.94.C) The present value is $29,076.82.D) The present value is $29,748.06.7.In order to help finance the purchase of a new house, the Abdullahs have decided to apply for a short-term loan (a bridge loan) in the amount of $140,000 for a term of 1 mo. If the bank charges simple interest at the rate of 12%/year, how much will the Abdullahs owe the bank at the end of the term?A) $141,400B)$140,012C) $146,800D) $144,9008.The Kwans are planning to buy a house 6 years from now. Housing experts in their area have estimated that the cost of a home will increase at a rate of 6%/year during that period. If this economic prediction holds true, how much can the Kwans expect to pay for a house that currently costs $160,000?A) $218,199B) $221,562C) $230,490D) $226,9639.The manager of a money market fund has invested $4.2 million in certificates of deposit that pay interest at the rate of 5.4%/year compounded quarterly over a period of 5 years. How much will the investment be worth at the end of 5 years?A) 5,491,921.88B) 3,211,990.34C) 1,291,921.88D) 12,024,347.2010.Find the effective rate corresponding to nominal rate 6% / year compounded monthly. Round the answers to the nearest hundredth of percent.A) 6.538%B) 5.858%C) 6.598%D) 6.168%11.Find the interest rate needed for an investment of $4,000 to grow to an amount of $5,000 in 4 yr if interest is compounded continuously. Please round the answer to the nearest hundredth of percent.A) 5.58 %/yrB) 5.70 %/yrC) 6.63 %/yrD) 5.01 %/yrE) 5.92 %/yr12.Anthony invested a sum of money 6 yr ago in a savings account that has since paid interest at the rate of 7%/year compounded quarterly. His investment is now worth $19,713.77. How much did he originally invest? Please round the answer to the nearest cent.A) $13,000.01B) $12,500.01C) $14,000.01D) $11,500.01E) $11,000.0113.Georgia purchased a house in 1998 for $220,000. In 2003 she sold the house and made a net profit of $50,000. Find the effective annual rate of return on her investment over the 5-yr period. Please round the answer to the nearest tenth of percent.A) 3.7%/yrB) 3.1%/yrC) 4.4%/yrD) 4.2%/yrE) 5.6%/yr14.Find the amount of an ordinary annuity of 10 yearly payments of $1,800 that earn interest at 10% per year, compounded annually.A) $4,668.74B) $28,687.36C) $87,798.04D) $3,600.0015.Robin, who is self-employed, contributes $4,000/year into a Keogh account. How much will he have in the account after 15 years if the account earns interest at the rate of 6.5%/year compounded yearly?A) $96,728.68B) $10,287.36C) $158,267.14D) $3,771.2816.If a merchant deposits $1,500 annually at the end of each tax year in an IRA account paying interest at the rate of 10%/year compounded annually, how much will she have in her account at the end of 25 years? Round your answer to two decimal places.A) $16,252.06B) $147,520.59C) $5,250.00D) $34,663.6517.Find the present value of an ordinary annuity of $600 payments each made quarterly over 5 years and earning interest at 4% per year compounded quarterly.A) $8,154.20B) $2,671.09C) $10,827.33D) $56,916.8718.Juan invested $24,000 in a mutual fund 5 years ago. Today his investment is worth $34,616. Find the effective annual rate of return on his investment over the 5-year period.A) 10.3%/yearB) 8%/yearC) 83%/yearD) 8.3%/year19.Find the amount of an ordinary annuity for 5 years of quarterly payments of $2,200 that earn interest at 4% per year compounded quarterly.A) $11,222.21B) $65,511.77C) $48,441.81D) $2,684.4220.Find the present value of the ordinary annuity. Please round the answer to the nearest cent.$2,000 per semiannual period for 7 yr at 12%/year compounded semiannuallyA) P = $18,589.97B) P = $17,913.54C) P = $20,003.52D) P = $13,147.80E) P = $9,629.07
In your discussion response:Agree or disagree with one of the given Math Myths.ORShare your own current or former feelings of math anxiety. Explain how you plan to deal with it in this course or how you have dealt with it in a previous course.Many students say they have math anxiety. A definition that is given in the minitext Coping With Math Anxietyathttp://www.mathacademy.com/pr/minitext/anxiety/Math anxiety is a feeling of intense frustration or helplessness about one’s ability to do math.There are many factors that can affect a person’s attitude about math and some of them are erroneous ideas or misconceptions. Many authors have addressed some math myths that are commonly accepted by the general public.Math Myth #1: Aptitude for math is inborn.For someone who truly thinks that their situation is hopeless because they didn’t get the “math genes,” ask them how they know. If they have never studied a foreign language, do they assume they don’t have the “foreign language gene?” A person may have a natural inclination to enjoy one subject more than another but that has little to do with an inborn ability in that subject. Mathematics skills are learned skills.Math Myth #2: To be good at math you have to be good at calculating.Mathematics today is a science of ideas, not an exercise in calculation. There are some people who are unusually gifted in doing lengthy calculations mentally but that is not a required skill for understanding math concepts. A calculator used properly is a tool that facilitates understanding since your train of thought does not have to be interrupted with calculations.Math Myth #3: Math requires logic, not creativityWhile math does employ logical thinking, so do many other subjects or tasks. How do you prepare a meal that includes both hot items and cold items that require various cooking and preparation times so that they all are ready at the same time? You use logical thinking to develop a plan and then carry out the plan.Creativity and intuition also have a place in mathematics. Many mathematical theorems that were discovered and proved began with an intuition or speculation by someone.Math Myth #4: In math, what’s important is getting the right answers.In learning mathematics, understanding the concepts is what is most important. In situations when partial credit is given, you will earn morepoints for following a correct procedure than accidentally stumbling onto the correct answer. Technology tools can be used to perform calculations but you will have to provide the instructions (logical process) to the tool.Math Myth #5: Men are naturally better than women at mathematical thinking.This is a myth that keeps lingering on from societal misconceptions and pressures. Research has shown this to be false.This is not an exhaustive list of math myths. There are others. Other resources may have an entirely different list with some overlap and with some new ones. You may also formulate your own. The key is to help students dispel these myths that may be interfering with the progress in learning math.In a study that examined “The Relationships Among Working Memory, Math Anxiety, and Performance,” Mark Ashcraft and Elizabeth Kirk explain why. Ashcraft says “the most effective interventions for math anxiety are the cognitive-behavioral ones….The anxiety reaction is causing the problem, not some deep-seated deficiency at math. Math anxiety is learned, so it can be unlearned and overcome.”
The first product requested of you as the CCISO by the CB Drifter Technology senior staff is to detail the organization’s security governance in a document, referred to as a security program plan or security charter. This security charter, a 4-5-page MS Word document, should show how the security program aligns with the goals and governance of the organization.Paper Format:Title page (does not count towards page length requirement). Use “CB Drifter Technology Security Charter” as document title.Security visionSecurity missionSecurity scopeStrategic security objectivesSecurity responsibilitiesSecurity principlesCorporate and management commitmentEvaluate and renewal requirementsAPA References page (does not count towards the page length requirement)Your report must be written using the APA writing style. For more information on APA, please visit the APA Lab.
Question 1 of 200.0/ 5.0 PointsWrite the vector v in terms of i and j whose magnitude and direction angle θ are given.= 8, θ = 30°A. v = -4i + 4jB. v = 4i + 4jC. v = 4i + 4jD. v = 4i + 4jQuestion 2 of 200.0/ 5.0 PointsSelect the representation that does not change the location of the given point. (4, 110°)A. (4, 470)°B. (4, 290)°C. (-4, 200)°D. (-4, 470)°Question 3 of 200.0/ 5.0 PointsFind the quotient of the complex numbers. Leave answer in polar form.z1 =z2 =A.B.C.D.Question 4 of 200.0/ 5.0 PointsFind the unit vector that has the same direction as the vector v. v = 3i + jA. u = i + jB. u = i + jC. u = 3i + jD. u = i + jQuestion 5 of 205.0/ 5.0 PointsPolar coordinates of a point are given. Find the rectangular coordinates of the point.A. (-1.6, -1.3)B. (1.6, 1.3)C. (1.3, 1.6)D. (-1.3, -1.6)Question 6 of 200.0/ 5.0 PointsFind the work done by a force of 4 pounds acting in the direction of 41° to the horizontal in moving an object 5 feet from (0, 0) to (5, 0).A. 13.1 ft-lbB. 16.2 ft-lbC. 15.1 ft-lbD. 30.2 ft-lbQuestion 7 of 200.0/ 5.0 PointsSolve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. a = 6, c = 11, B = 109°A. b = 14.1, A = 24°, C = 47°B. b = 19.9, A = 22°, C = 49°C. b = 17, A = 26°, C = 45°D. no triangleQuestion 8 of 200.0/ 5.0 PointsSolve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. B = 15° C = 113° b = 49A. A = 50°, a = 176.3, c = 151.2B. A = 52°, a = 149.2, c = 174.3C. A = 52°, a = 151.2, c = 176.3D. A = 50°, a = 174.3, c = 149.2Question 9 of 200.0/ 5.0 PointsFind all the complex roots. Write the answer in the indicated form. The complex cube roots of 27(cos 234° + i sin 234°) (polar form)A. -3(cos 78° + i sin 78°), 3(cos 198° + i sin 198°), -3(cos 318° + i sin 318°)B. 3(cos 78° + i sin 78°), 3(cos 118° + i sin 118°), 3(cos 158° + i sin 158°)C. -3(cos 78° + i sin 78°), 3(cos 118° + i sin 118°), -3(cos 158° + i sin 158°)D. 3(cos 78° + i sin 78°), 3(cos198° + i sin 198°), 3(cos 318° + i sin 318°)Question 10 of 205.0/ 5.0 PointsFind the specified vector or scalar.u = -4i + 1j and v = 4i + 1j; Find .A.B. 8C. 5D. 2Question 11 of 205.0/ 5.0 PointsUse the dot product to determine whether the vectors are parallel, orthogonal, or neither. v = j, w = 4iA. orthogonalB. parallelC. neitherQuestion 12 of 200.0/ 5.0 PointsWrite the complex number in polar form. Express the argument in degrees. 4iA. 4(cos 0° + i sin 0°)B. 4(cos 270° + i sin 270°)C. 4(cos 90° + i sin 90°)D. 4(cos 180° + i sin 180°)Question 13 of 200.0/ 5.0 PointsThe wind is blowing at 10 knots. Sailboat racers look for a sailing angle to the 10-knot wind that produces maximum sailing speed. This situation is now represented by the polar graph in the figure shown below. Each point (r, θ) on the graph gives the sailing speed, r, in knots, at an angle θ to the 10-knot wind. What is the speed to the nearest knot, of the sailboat sailing at 120° angle to the wind?A. 8 knotsB. 9 knotsC. 7 knotsD. 10 knotsQuestion 14 of 200.0/ 5.0 PointsSolve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. a = 7, b = 7, c = 5A. A = 70°, B = 70°, C = 40°B. A = 69°, B = 69°, C = 42°C. A = 42°, B = 69°, C = 69°D. A = 69°, B = 42°, C = 69°Question 15 of 200.0/ 5.0 PointsPlot the complex number. 2 + iA.B.C.D.Question 16 of 200.0/ 5.0 PointsFind the magnitude and direction angle θ, to the nearest tenth of a degree, for the given vector v. v = -4i – 3jA. 5; 233.1°B. 7; 216.9°C. 5; 216.9°D. 5; 36.9°Question 17 of 200.0/ 5.0 PointsFind the quotient of the complex numbers. Leave answer in polar form.z1 =z2 =A.B.C.D.Question 18 of 200.0/ 5.0 PointsGraph the polar equation.r = 2 + 2sin θA.B.C.D.Question 19 of 200.0/ 5.0 PointsPolar coordinates of a point are given. Find the rectangular coordinates of the point. (-5, -180°)A. (-5, 0)B. (0, -5)C. (0, 5)D. (5, 0)Question 20 of 200.0/ 5.0 PointsPlot the complex number.-5- 5iA.B.C.D.
Howdy! I have a document here with 3 written questions and a worksheet that has to be filled in. I’m looking for a two day turnaround, with a $25 budget.
for the document , answer all the questionfor the image assignment, answer the circle ones
