A hybrid course is one that contains both online and classroom instruction. In a study performed at Middle Georgia State University, a software packag

(a)Step 1
A.95% confidence interval for the mean number of hours it takes for the student to makes course of objectives is, First, compute f-critical value then find confidence interval.
The t critical value for the 95% confidence interval is,
$\alpha =0.05$
The sample size is small and two-tailed test. Look in the column headed and the row headed in the fdistribution table by using degree of freedom is,
d.f.=n-1
=45-1=44
The tcritical value for the 95% confidence interval is 2.015.
Step 2
$95\mathrm{\%}C.I.=\bar{x}\pm t_c\times s/\sqrt{n}$
$=80.50\pm 2.015\times 51.20/\sqrt{45}$
$=80.50\pm 15.38$
= 65.12 to 95.88
65.12 to 95.884 95% confidence interval for the mean number of hours it takes for the student to makes course of objectives is.
Step 3
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