The following census was taken of the yearly health care expenditure levelsPersonHealth CareExpenditure2501210003500415005100016250740081000950010400111000125001340014100015500164001710001850019500201000Suppose that you are unable to view all of the data in the above census table so thatyoudo notknow the pmf for the data generating process (DGP) of the random variable Y representing theTRUE DGP. Instead, suppose that you assume the DGP (Y) to be normally distributed and, basedon a sample comprising persons 4, 8, 12, 16, and 20, produce an estimate of the pmf of Y. Basedon this estimated pmf/pdf, what is P({350

To solve this problem, we need to estimate the parameters of the normal distribution based on the…

Answered: The following census was taken of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Census Bureau gives this distribution for the number of people in American households in 2016. Family size 1 2 4 6. 7 Proportion 0.28 0.35 0.15 0.13 0.06 0.02 0.01 Note: In this table, 7 actually represents households of size 7 or greater. But for purposes of this exercise, assume that it means only households of size exactly 7. Suppose you take a random sample of 4000 American households. About how many of these households will be of size 2? Sizes 3 to 7? The number of households of size 2 is about The number of households of size 3 to 7 is about
A university wanted to see whether there was a significant difference in age between its day staff and evening staff. A random sample of 35 staff members is selected from each group. The data are given below. Test the hypothesis that there is no difference in age between the two groups. Use a =0.05. Day Staff 22 24 24 23 19 19 23 22 18 21 21 18 18 25 29 24 23 22 22 21 20 20 20 27 17 19 18 21 20 23 26 30 25 21 25 Evening Staff 18 23 25 23 21 21 23 24 27 31 24 20 20 23 19 25 24 27 23 20 20 21 25 24 23 28 20 19 23 24 20 27 21 29 30
1) The following 25 scores are from students that participated in a psychology experiment. The scores represent the number of trials required to master a memory task. What is the range, mean, variance, and standard deviation for this dataset? 12 10 12 11 6 15 14 17 9 12 13 8 7 15 14 15 18 19 14 10 14 14 16 8 9
The following table shows the ethnic origins of two random samples of students from a Canadian university, one from 2012 and the other from 2022: European 2012 2022 African Asian 308 58 52 364 100 58 Note: Canadian born students are classified according to their ancestry. (a) What would be an appropriate test to check if there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022? Justify your answer. ] Other 22 38 (b) Based on your answer in (a) above, test whether there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022. Use a 5% significance level and show your detailed manual calculations and all the steps of your hypothesis test (hypotheses, significance level, expected cell frequencies (rounded to 1 decimal), test statistic, decision criteria, critical value and p-value, conclusion with justification). (Manual…
One fair coin is tossed 25 times, let X be the number of getting heads out of those 25 tossing experiments. What is the mean and variance of X? 12 and 6.25 12.5 and 6.25 10 and 2.5 12.5 and 2.5
The accompanying data are x = advertising share and y = market share for a particular brand of soft drink during 10 randomly selected years. x 0.104 0.072 0.072 0.077 0.086 0.047 0.060 0.050 0.070 0.052 y 0.137 0.127 0.120 0.086 0.079 0.076 0.065 0.059 0.051 0.039 b)Calculate the equation of the estimated regression line. (Round your answers to four decimal places.) d)Calculate a point estimate of ?e. (Round your answer to five decimal places.)
What is the 1.test statistic and 2. p-value for this test statistics? The test is a two-tailed test.
The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below. Observed Number of Households in the Community Percent of U.S. Type of Household Households Married with children 26% 110 Married, no children Single parent One person Other (e.g., roommates, siblings) 29% 101 32 25% 98 11% 70 Use a 5% level of significance to test the claim that the distribution of U.S. households fits the Dove Creek distribution. (a) What is the level of significance? State the nul and alternate hypotheses. O Ho: The distributions are different. H: The distributions are the same. O Hg: The distributions are the same. H: The distributions are different. O Hg: The distributions are the same. H: The distributions are the same. O Hg: The distributions are different. H: The distributions are different. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test…
The following data for a random sample of banks in two cities represent the ATM fees for using another bank's ATM. Compute the sample variance for ATM fees for each city. City A City B 2.00 1.50 1.50 0.00 1.00 1.00 1.50 The variance for city A is $ (Round to the nearest cent as needed.) 2.00 1.50 1.00 ... 4
Consider the following observed weights (in kilograms) of a randomsample of 20 learners and use it to estimate the true value of theaverage weight of learners enrolled in the class. 40 45 46 48 48 50 55 55 56 5858 59 60 60 62 62 64 64 65 66 1. Compute the mean.2. Interpret the result.
The data below represents yearly car insurance premiums in the US for 18 randomly selected drivers. Assuming the data is normally distributed, test the claim that the average yearly car insurance premium for a person in the US is $1,641 using a level of significance of 5%. 1,653 1,668 1,511 1,634 1,645 1,617 1,557 1,581 1,607 1,614 1,616 1,577 1,639 1,659 1,778 1,672 1,578 1,569 What type of test will be used in this problem? What evidence justifies the use of this test? Check all that apply: The population standard deviation is not known The original population is approximately normal np>5 and nq>5 There are two different samples being compared The sample size is larger than 30 The population standard deviation is known The sample standard deviation is not known Enter the null hypothesis for this test.H0 Enter the alternative hypothesis for this test.H1: Is the original claim located in the null or alternative hypothesis? What is the test…

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