A student believes that no more than 20% (i.e., 
20%) of the students who finish a statistics course get an A. A random sample of 100 students was taken. Twenty-four percent of the students in the sample received 'A's.
a.State the null and alternative hypotheses.b.Using the critical value approach, test the hypotheses at the 1% level of significance.c.Using the p-value approach, test the hypotheses at the 1% level of significance.
What will be an ideal response?
?
| a. | H0: p .2 |
| Ha: p> .2 | |
| b. | Do not reject H0; test statistic z = 1 < 2.33 |
| c. | Do not reject H0; p-value = .1587 > .01 |
Business
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