Ed 602 Assignment 14

Enter your name and student ID# in the spaces below. Then provide an answer to each of the questions entered on this form. You may make the following substitutions in your answers if necessary.

Use not equal for the not equal to symbol,

Use mu1 for the group 1 mean symbol,

Use mu2 for the group 2 mean symbol,

Use H0 for the null hypothesis symbol, H0.

Use H1 for the alternative hypothesis symbol, H1.

Use <= for the less than or equal to symbol,

Use >= for the greater than or equal to symbol,

Use X2 for the chi-square symbol,

After you have filled in all of your answers click on the Submit button at the bottom of the page. You will receive confirmation that your assignment has been received. A copy will be sent to your instructor who will go over your answers and give you feedback through electronic mail.

Name:

Student ID# (or SSN):

For each of the following problems, state the null hypothesis, the alternate hypothesis, the calculated value of the statistic, the critical value of the statistic, and the conditions under which you would reject the null hypothesis.

  1. A sample of 100 people are classified as to their social club membership and their academic status. Is belonging to a social club independent of academic status?.

    Academic Classification and Social Club Membership for 100 People
    Academic
    classification    		 Belong to
    Social Club    		 Do not Belong to
    Social Club
    Freshman 9 16
    Sophomore 11 14
    Junior 16 9
    Senior 19 6

    1. H0:

    2. H1:

    3. =

    4. Critical Value for =

    5. State conditions under which you would reject H0

  2. A consumer-research group asked 100 men to use each of three kinds of after-shave lotion for one month. After the trial period, each man indicated the lotion he preferred. Using the results below, determine whether there is a significant preference for any of the three after-shave lotions.

    Number of Men Preferring Each of Three After-Shave Lotions
    Lotion Number of Men Preferring
    1 42
    2 36
    3 22

    1. H0:

    2. H1:

    3. =

    4. Critical Value for =

    5. State conditions under which you would reject H0

After answering all questions, press .

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Last modified: Tue Aug 16. 2005