Answer:
The correct option is:
(a) There is sufficient sample evidence for the program's claim to be considered correct.
Step-by-step explanation:
The hypothesis can be defined as follows:
A random sample of <em>n</em> = 50 students is selected.
The significance level of the test is, <em>α</em> = 0.05.
The degrees of freedom are:
df = n - 1
= 50 - 1
= 49
Compute the critical value as follows:
Use the <em>t</em>-table.
Decision rule:
If the calculate value of the test statistic is less than the critical value then the null hypothesis will be rejected.
The calculate value of the test statistic is, <em>t</em> = -1.69.
The null hypothesis will be rejected at 5% level of significance.
The correct option is:
(a) There is sufficient sample evidence for the program's claim to be considered correct.