Assignment #4 (25 points)

One hundred and five students took undergraduate 3-credit hour statistical course from Department of Mathematics and Statistics. This course has three different sections taught by the same instructor. During the semester, students took five quizzes and one final exam. Before the final exam, the TA provided an optional review section. The following information was available for each student. The data file is available in Canvas (grade.sav).

The coding guide is below:

Variable	Label	Value
ID	Identification number
GENDER	Gender of students	1 = female 2 = male
ETHNIC	Ethnicity of students	1 = Native 2 = Asian 3 = African American 4 = Caucasian 5 = Hispanic
YEAR	Year in school	1 = Freshman 2 = Sophomore 3 = Junior 4 = Senior
SECTION		1 = MWF class 2 = T, Th class 3 = Wednesday class
GPA	Student's GPA	0.00~4.00
REVIEW	Student attended review session before final exam	1 = No 2 = Yes
QUIZ1~5	Student's scores for each quiz	0 ~ 10 each
Quiz	Total Quiz scores	0 ~ 100
FINAL	Student's score for final exam	0 ~ 100

Part A -Suppose we would like to see if male and female students who took different sections of classes have different performance on the total Quiz score. Retrieve the data from Canvas and answer the following questions:

1. Use SPSS to perform the appropriate statistical test(s). (1 point)
2. State the hypotheses for main effects below: (2 points)

First main effect

Null hypothesis

Alternative hypothesis

Second main effect:

Null hypothesis

Alternative hypothesis

1. State the hypotheses for interaction effect below: (2 points)

Null hypothesis

Alternative hypothesis

1. Results of the statistical tests. (3 points)

(including test statistic, degrees of freedom, p-value, and effect size if needed).

1. Do you need to conduct the simple main effect analysis? If yes, what are the results? (3 points)

If not, explain.

If yes, report results here.

1. Decision about the null hypotheses (reject or fail to reject). (1 point)

1. What verbal conclusions can be made? (3 point)

Part B - Suppose we would like to see if male and female students who took different sections of classes have different performance on the final exam. Retrieve the data from Canvas and answer the following questions:

1. Use SPSS to perform the appropriate statistical test(s). (1 point)
2. State the hypotheses for main effects below: (1 points)

First main effect

Null hypothesis

Alternative hypothesis

Second main effect:

Null hypothesis

Alternative hypothesis

1. State the hypotheses for interaction effect below: (1 points)

Null hypothesis

Alternative hypothesis

1. Results of the statistical tests. (3 points)

(including test statistic, degrees of freedom, p-value, and effect size if needed).

1. Do you need to conduct the simple main effect analysis? If yes, what are the results? (1 points)

If not, explain.

If yes, report results here.

1. Decision about the null hypotheses (reject or fail to reject). (1 point)

1. What verbal conclusions can be made? (2 point)