8:0555Exit7.In a sample of 150 men, 135 said that theyhad less leisure time today than they had 10years ago. In a random sampleof 250 women, 239 women said that theyhad less leisure time than they had 10 yearsago. At a = 0.10, is there a difference inthe proportions?There is enough evidence to support theclaim that the proportions are differentbecause the test value -2.77 is outsidethe noncritical region -1.65 8:051:02Exit8.In Cleveland, a random sample of 74 mailcarriers showed that 12 had been bitten byan animal during one week. InPhiladelphia, in a random sample of 81mail carriers, 19 had received animal bites.Find the 95% confidence interval for thedifference of the two proportions.-0.11

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Answered: 8:05 55 Exit 7. In a sample of 150 men,…

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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A large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three-year period. Single Policyholders Married Policyholders n1=550 n2=1,000 Number making claims = 110 Number making claims = 150 a. Use a=0.05 Test to determine whether the claim rates differ between single and married male policyholders. z-value (to 2 decimals) p-value (to 4 decimals) b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number. ( , )
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A 2019 study surveyed Norwegian parents about their children's eating habits and taste sensitivities. We are interested in seeing if there is a relationship between sensitivity to sweetness and emotional overeating. The study reports an F* = 2.34 with dfb 3 and dfw = 96. How many levels of 'sensitivity to sweetness' were used in the study? How many subjects participated in the entire study?
Thirteen different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 78 sec, what does df denote, and what is its value?
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What is the answer of the 7.14 question?
Thirty different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 92 sec, what does df denote, and what is its value? what's the value of df?

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