(a)

Determine the null and alternative hypotheses.

(b)

Explain what it would mean to make a Type I error.

(c)

Explain what it would mean to make a Type II error.

(a)
The null and alternative hypotheses are given below:
From the given information, the claim is the proportion of students who enroll in her institution have a lower completion rate. This is representing the alternative hypothesis.
Null hypothesis:
H_{0}: p = 0.397.
Alternative hypothesis:
H_{0}: p < 0.397
(b)
Type I error:
Reject the null hypothesis, when it is true.
The president concludes that rejects the null hypothesis. But in...
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