The GfK Custom Research Organization conducted identical surveys five years apart. One question asked women: "Are most men basically kind, gentle, and thoughtful"? The earlier survey revealed that, of the 3550 women surveyed, 2350 said that they were. In the later survey, 2250 of the 3550 women surveyed thought that men were kind, gentle, and thoughtful. Can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Use 0.01 significance level. Calculate and interpret the p-value. a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.) The decision rule is to reject Ho if z is less than b. Compute the pooled proportion. (Round the final answer to 2 decimal places.) The pooled proportion is: c. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 2 decimal places.) The test statistic is: z = d. What is your decision regarding Ho? Ho is rejected e. Calculate the p-value. 0.0065
The GfK Custom Research Organization conducted identical surveys five years apart. One question asked women: "Are most men basically kind, gentle, and thoughtful"? The earlier survey revealed that, of the 3550 women surveyed, 2350 said that they were. In the later survey, 2250 of the 3550 women surveyed thought that men were kind, gentle, and thoughtful. Can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Use 0.01 significance level. Calculate and interpret the p-value. a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.) The decision rule is to reject Ho if z is less than b. Compute the pooled proportion. (Round the final answer to 2 decimal places.) The pooled proportion is: c. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 2 decimal places.) The test statistic is: z = d. What is your decision regarding Ho? Ho is rejected e. Calculate the p-value. 0.0065
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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Transcribed Image Text:The GfK Custom Research Organization conducted identical surveys five years apart. One question asked women: “Are most men
basically kind, gentle, and thoughtful"? The earlier survey revealed that, of the 3550 women surveyed, 2350 said that they were. In the
later survey, 2250 of the 3550 women surveyed thought that men were kind, gentle, and thoughtful. Can we conclude that women
think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Use 0.01 significance level. Calculate
and interpret the p-value.
a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.)
The decision rule is to reject Ho if z is less than
b. Compute the pooled proportion. (Round the final answer to 2 decimal places.)
The pooled proportion is:
c. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 2
decimal places.)
The test statistic is: z =
d. What is your decision regarding Ho?
Ho is rejected
e. Calculate the p-value.
0.0065
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