Is there a difference in the final examination grades for courses that are offered on-ground, online, or

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Is there a difference in the final examination grades for courses that are offered on-ground, online, or as a hybrid class (a hybrid class is half on-ground and half online)? The data provided in Table 10.12 gives the final examination grades (out of a maximum possible score of 100) received for 40 students randomly assigned an introductory statistics course in one of three different formats-on-ground, online, or as a hybrid.

a. State the appropriate null and alternative hypotheses.

b. How would you describe the factor? And how many factor levels are there?

c. Find the SSE and the MSE.

d. Find the SSTR and the MSTR.

e. Find the number of degrees of freedom for the numerator and the number of degrees of freedom for the denominator.

f. Find the \(p\)-value and interpret it within the context of the problem.
g. Find and interpret any and all significant differences.
h. Check any relevant model assumptions.
i. Is this sample large enough to be able to detect at least a five-point difference in final examination grades?

Table 10.12

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