A null hypothesis is that the average blood pressure for adult is 70. For a sample of 60 adults, theaverage blood pressure is 71.8. A significance test is done, and the p-value is 0.20 what is the mostappropriate conclusion?A. Reject the hypothesis that the population averages 70B. Fail to reject the hypothesis that the population averages 70O C. Reject all hypothesis that the sample average is 70D. None of these.E. Conclude that the population average is 71.8

Given: n=60μ=70x¯=71.8P-Value=0.20

Answered: A null hypothesis is that the average…

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 table below summarizes data from a survey of a sample of women. Using a 0.01 significance level, and assuming that the sample sizes of 800 men and 300 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Compute the test statistic. (Round to 3 decimal places) Find the critical value(s). (Round to 3 decimal places. Use a comma to separate answers as needed.) What is the conclusion based on the hypothesis test? ▼ (Fail to reject/Reject) H0.There ▼ (is not/ is) sufficient evidence to warrant rejection of the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. It ▼ (does not appear/ appears) that the gender of the interviewer affected the responses of women.
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3. Consider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or ttable) Hypotheses: Hg: HD s 6; HA: HD > 6 Sample results: 01:05:54 d = 8.2, sp = 7.2, n = 11 The following results are obtained using matched samples from two normally distributed populations: a. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.) Test statistic b. Find the p-value. O pvalue Picture 0.10 0.05 Picture p-value < 0.10 O 0.025 Picture p-value < 0.05 0.01 Picture p-value < 0.025 O p-value < 0.01
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