null hypothesis?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The null and alternative hypotheses are:
Ho P - P = 0
H : Pi - P+ 0
A sample of 200 observations from the first population indicated that X is 170. A sample of 160 observation arom the second
population revealed X2 to be 120. Use the 0.05 significance level to test the hypothesis.
a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answers to 2 decimal places.)
The decision rule is to reject Ho if z (Click to select)
b. Compute the pooled proportion. (Round the final answer to 2 decimal places.)
ces
The pooled proportion is
c. Compute the value of the test statistic. (Round the final answer to 2 decimal places.)
The test statistic is z
d. What is your decision regarding the null hypothesis?
Ho is (Click to select)
e. Determine the pvalue. (Round the final answer to 4 decimal places.)
The pvalue is
Transcribed Image Text:The null and alternative hypotheses are: Ho P - P = 0 H : Pi - P+ 0 A sample of 200 observations from the first population indicated that X is 170. A sample of 160 observation arom the second population revealed X2 to be 120. Use the 0.05 significance level to test the hypothesis. a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answers to 2 decimal places.) The decision rule is to reject Ho if z (Click to select) b. Compute the pooled proportion. (Round the final answer to 2 decimal places.) ces The pooled proportion is c. Compute the value of the test statistic. (Round the final answer to 2 decimal places.) The test statistic is z d. What is your decision regarding the null hypothesis? Ho is (Click to select) e. Determine the pvalue. (Round the final answer to 4 decimal places.) The pvalue is
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