A CEO wondered if her company received either more or less complaints from its workers on Monday than any other day. She figured that if it were truly random, 20% of the complaints should have been filed on Monday. She randomly selected 50 complaints and checked the day that they were submitted. In those complaints 13 were submitted on a Monday. The CEO conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of complaints submitted on a Monday is different from 20%. (a) Which answer choice shows the correct null and alternative hypotheses for this test? Select the correct answer below: H0:p=0.26; Ha:p>0.26, which is a right-tailed test. H0:p=0.2; Ha:p<0.2, which is a left-tailed test. H0:p=0.26; Ha:p≠0.26, which is a two-tailed test. H0:p=0.2; Ha:p≠0.2, which is a two-tailed test.
A CEO wondered if her company received either more or less complaints from its workers on Monday than any other day. She figured that if it were truly random, 20% of the complaints should have been filed on Monday. She randomly selected 50 complaints and checked the day that they were submitted. In those complaints 13 were submitted on a Monday.
The CEO conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of complaints submitted on a Monday is different from 20%.
(a) Which answer choice shows the correct null and alternative hypotheses for this test?
Select the correct answer below:
H0:p=0.26; Ha:p>0.26, which is a right-tailed test.
H0:p=0.2; Ha:p<0.2, which is a left-tailed test.
H0:p=0.26; Ha:p≠0.26, which is a two-tailed test.
H0:p=0.2; Ha:p≠0.2, which is a two-tailed test.
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