Question

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 13were submitted on a Monday.

The CEO conducts a one-proportionhypothesis testat 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:p0.26, which is a two-tailed test.

H0:p=0.2; Ha:p0.2, which is a two-tailed test.