In a survey of 500 drivers from the​ South, 401 wear a seat belt. In a survey of 360 drivers from the​ Northeast, 272 wear a seat belt. Atα=0.05​, can you support the claim that the proportion of drivers who wear seat belts is greater in the South than in the​ Northeast? Assume the random samples are independent.  The critical​ value(s) is(are) Rejection reigion  standardized test statistic Reject or fail to reject the null hypothesis

A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are n​=196, x=6.83​, s=2.15. Use a .10 significance level to test the claim that the population mean of such ratings is less than 7.00. Assume that a simple random sample has been selected. Identify the null and alternative​ hypothesis, test​ statistic, P-value, and state the final conclusion that addresses the original claim. a. Determine the test statistic.? b. Determine the​ P-value.?

A data set includes data from student evaluations of courses. The summary statistics are n = 96, x 3.44, s 0.66. Use a 0.10 significance level to test the claim that the population of student course evaluations has a mean equal to 3.50. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. Ho: H= 3.50 H1:H> 3.50 O B. Ho: u= 3.50 OC. Ho:H#3.50 H1:µ= 3.50 O D. Ho: H= 3.50 H1: µ#3.50 Determinhe test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. Ho. There is evidence to conclude that the original claim that the mean of the population of student course evaluations is equal to 3.50 correct. Click to select your answer(s). F12 F10 吕0 F3 F6 FB F9 F7 F4 F5 esc F1 F2 & %23 24…

A z-test is to be performed for a population mean. Express the decision criterion for the hypothesis test in terms of x. That is, determine for what values of x the null hypothesis would be rejected. ala After training intensively for six months, John hopes that his mean time to run 100 meters has decreased from last year's mean time of 11.8 seconds. He performs a hypothesis test to determine whether his mean time has decreased. Preliminary data analyses indicate that it is reasonable to apply a z-test. The hypotheses are Ho:u= 11.8 seconds H:u11.64 O Reject H, if x 11.61 Submit Assignment 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy II