Correct null and alternative hypothesis
Write a correct null and alternative hypothesis that tests the claim that the mean distance a student commutes to campus is no less than 5.3 miles.
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The top of the 140-foot vertical tower is to be anchored by cables which make the angle of 61° with ground. How long should the cables be?
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
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