A statistic instructor would like to know whether it is worthwhileto require stu

Question

A statistic instructor would like to know whether it is worthwhileto require students to do weekly homework assignments. Forone section of the statistics course, homework is assigned,collected and graded each week. For another section, the sameproblems are "suggested" each week, but the students are notrequired to turn in their homework. At the end of thesemester, all students take the same final exam. The gradedistribution for the 2 sections are as follows:
                         FINAL EXAM GRADE
        A           B          C          D         E          Total R
Homework    12         15          17    5    1            50
No homework    12   21          28   25          14          100
Totals   24        36          28      30          15 150

State the null hypothesis (in words)

At alpha = .05 the df =
The critical value is:

The expected frequencies are as follow:
                           FINAL EXAM GRADE
                            A             B          C           D           E
Homework     ____        ____      ____     ____       ____
No Homework ____ ____    ____ ____ ____

Chi-square =
What is your conclusion and is there or is there not asignificance?

THANKS FOR YOUR HELP.


                         FINAL EXAM GRADE
        A           B          C          D         E          Total R
Homework    12         15          17    5    1            50
No homework    12   21          28   25          14          100
Totals   24        36          28      30          15 150

State the null hypothesis (in words)

At alpha = .05 the df =
The critical value is:

The expected frequencies are as follow:
                           FINAL EXAM GRADE
                            A             B          C           D           E
Homework     ____        ____      ____     ____       ____
No Homework ____ ____    ____ ____ ____

Chi-square =
What is your conclusion and is there or is there not asignificance?

THANKS FOR YOUR HELP.

Explanation / Answer

are you sure it is chi-square application? I do not think it is.

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