Descriptive and Inferential Statistics Homework

Descriptive Statistics

·      Arrange the raw data into a table

·      Compute two composite scores, one for each research variable

·      Compute the mean and standard deviation for each continuous variable, including the composites

·      Compute the frequency for each categorical variable

·      You do not need to show your work for computation of mean and standard deviation.

Note: Include a blank copy of your questionnaire with your descriptive statistics

Your homework may look something like this, but bigger.  There must be one column for each question you asked.  Most people will have a sheet 12 columns wide with the following headings:  Subject, Age, Gender, Group, q1, q2, q3, q4, q5, q6, comp1, comp2

Age	Gender	var 1	var 2
19	M	7	4
20	F	6	4
21	F	2	5
ave = 20	Males = 1	ave = 5	ave = 4.33
SD = .77	Females = 2	SD = 1.41	SD = .41

Inferential Statistics

·      Write a hypothesis where one variable is a categorical variable with only two values (e.g. gender, a yes/no question, does/does not do X) and the other variable is continuous

·      Perform a t test using the categorical variable as the grouping variable and the continuous variable as the dependent variable

·      Write a hypothesis using at least one other variable.  Each variable must be a categorical variable (or be transformed into a categorical variable using a technique like median split).

·      Perform a chi square test using the two variables

·      You must attach a sheet showing computation for both the t-test and the chi square.