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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Q2: The median age of the children is: 29 30.5 28.5 28
Homa An education researcher claims that 60% of college students work year-round. In a random sample of 300 college students, 180 say they work year-round. Al a=0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. O C. Atleast % of college students work year-round. book OD. The percentage of college students who work year-round is not %. cer Contents Let p be the population proportion of successes, where a success is a college student who works year-round. State Ho and H. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho p# GB. H, p=0.60 media Library OC. Ho P Plan OF. Ho ps H, p Tor Success (b) Find the critical value(s) and identify the rejection region(s). sible Resources Identify the critical value(s) for this test. for Success %3D (Round to two decimal places as needed. Use a comma to separate answers as needed.) Clear all Check answer View an…
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7.2.29-T Question Help An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidence that the sample mean is within 6 IQ points of the true mean. Assume that o = 19 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. The required sample size is. (Round up to the nearest integer.)
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Students in an experimental psychology class did research on depression as a sign of stress. A test was administered to a sample of 30 students.The scores are shown below. 43 51 11 91 77 36 64 37 42 72 54 62 36 75 51 D 72 37 29 39 61 48 63 36 41 21 37 51 47 86 14 To find the 10% trimmed mean of a data set, order the data, delete the lowest 10% of the entries and the highest 10% of the entries, and find the mean of the remaining entries. Complete parts (a) through (c). (a) Find the 10% trimmed mean for the data. The 10% trimmed mean is (Round to the nearest tenth as needed.) (b) Compare the four measures of central tendency, including the midrange. Mean = (Round to the nearest tenth as needed.) Median = Mode = (Use a comma to separate answers as needed.) The midrange is found by the following formula. (Maximum data entry) + (Minimum data entry) Midrange = (Round to the nearest tenth as needed.) (c) What is the benefit of using a trimmed mean versus using a mean found using all data…
Español According to previous studies, 10% of the U.S. population is left-handed. Not knowing this, a high school student claims that the percentage of left-handed people in the U.S. is 12%. The student is going to take a random sample of 900 people in the U.S. to try to gather evidence to support the claim. Let p be the proportion of left-handed people in the sample. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p. 0.12 (b) Find the standard deviation of p. X 5 (c) Compute an approximation for P(p≤0.12), which is the probability that there will be 12% or fewer left-handed people in the sample. Round your answer to four decimal places. A 27
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