Ed 602 Assignment 12

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,

After you have filled in all of your answers click on the Submit button at the bottom of the page. You will recieve 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, use the Excel spreadsheet program to calculate the value of the appropriate statistic for each problem. For each problem indicate H0, H1, and the value of t. Where calculations are required just provide the answer, you do not have to show your work.

  1. Twenty first-grade children were given a reading readiness test. On the basis of the scores on this test, two groups of matched subjects were formed. Children in group 1 were given the traditional method of instruction in reading, while children in group 2 were given a new, highly individualized form of reading instruction. At the end of the academic year, the students were given a reading achievement test. Analyze the results below to determine whether the new reading instructional program leads to significantly higher reading achievement scores for group 2.

    Reading Achievement Scores for Two Groups of Children
    Group 1
    Traditional Reading Method    		 Group 2
    Individualized Reading Method
    79 85
    83 92
    93 89
    86 88
    56 64
    65 71
    71 70
    66 69
    50 63
    42 51

    1. H0:

    2. H1:

    3. t =

  2. The attitudes of 12 students enrolled in a course on the counseling of women were measured before and after the students saw a set of video tapes illustrating sex bias in counseling. The attitude scale that was used related to student attitudes toward the female role. The attitude scale was scored in such a way that a maximum score of 20 indicates acceptance of stereotyped roles for women. Did viewing the videotapes cause a significant change in the attitudes of these 12 students toward the female role?

    Attitude Scale Scores for 12 Students Before and After Viewing a Video Tape
    Pretest - Before Viewing Posttest - After Viewing
    17 11
    14 8
    9 10
    18 9
    6 6
    16 13
    12 11
    7 9
    15 12
    16 11
    20 12
    14 6

    1. H0:

    2. H1:

    3. t =

After answering all questions, press .

If you are having trouble with the page, please contact

John Wasson
Last modified: Tue Aug 16, 2005