Are you an impulse shopper? A survey of 1200 grocery shoppers indicated that 59% of males and 52% of females make an impulse purchase every time they shop. Assume that the survey consisted of 600 males and 600 females.a. At the 0.05 level of significance, is there evidence of a difference in the proportion of males and females who make an impulse purchase every time they shop?b. Find the p-value and interpret its meaning.a. State the null and alternative hypotheses, where n, is the population proportion of males who make an impulse purchase every time they shop and n, is the population proportion of females who make an impulse purchase every time they shop. Choose the correct answer below.O A. Ho: 1 =x2O B. Ho: T1 #2H,:, <12OC. Ho: 1 + n2OD. Ho: 1 = 2O E. Ho: 1 =x2H,: > 12OF. Hg: #72H,:, > 12Determine the value of the test statistic.ZSTAT =O (Type an integer or a decimal. Round to two decimal places as needed.)Determine the critical value(s) for this test of hypothesis.The critical value(s) is (are).(Type integers or decimals. Round to two decimal places as needed. Use a commaseparate answers as needed.)State the conclusion.V the null hypothesis. There isv evidence of a difference in the proportion of males and females who make an impulse purchase every time they shop.b. The p-value is.(Type an integer or a decimal. Round to three decimal places as needed.)What does the p-value mean?O A. The p-value is the probability of obtaining a result at least as extreme as the one obtained with this sample given that the null hypothesis is true.O B. The p-value is the probability of falsely rejecting the null hypothesis.O c. The p-value is the probability of rejecting the null hypothesis if the test were repeated for different samples.O D. The p-value is the probability that the null hypothesis is true.

Given that For males, sample size n1 = 600, sample proportion = 59% = 0.59 For females, sample size…

Answered: Are you an impulse shopper? A survey of…

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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Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 247 of 700 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.01 level of significance. 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis Because npo (1-Po) = 172.5 > 10, the sample size is less than are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? 0.56 versus H,: p # 0.56 Ho: (Type integers or decimals. Do not round.) %D Find the test statistic. Zo = (Round to two decimal places as needed.) %D
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Random samples of students at 107 four-year colleges were interviewed several times since 1998. Of the students who reported drinking alcohol, the percentage who reported bingeing at least three times within the past two weeks was 41.1% of 336 students in 1998 and 21.6% of 843 students in 2004. a. Estimate the difference between the proportions in 2004 and 1998, and interpret. b. Find the standard error for this difference. Interpret it. c. Define the two relevant population parameters to compare in the context of this exercise. d. Construct and interpret a 90% confidence interval to estimate the true difference. e. State the assumptions for the confidence interval in part d to be valid. ... A. The number of students in the population in 2004 who reported drinking alcohol that binged at least three times within the past two weeks. B. The proportion of the student population in 1998 who reported drinking alcohol that binged at least three times within the past two weeks. C. The number…
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