   Chapter 12, Problem 21P Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

The following data are from an independent-measures study comparing two treatment conditions.a. Use an independent-measures t test with α = .05 to determine whether there is a significant mean difference between the two treatments.b. Use an ANOVA with α = .05 to determine whether there is a significant mean difference between the two treatments. You should find that F = t2. a.

To determine
There are any significant mean differences between the two treatments.

Explanation

Given info:

Use an independent-measures t test with α=0.05.

The following data were obtained from an independent-measures research study comparing two treatment conditions.

 Treatment I Treatment II 8 2 7 3 6 3 5 5 9 2

Calculation:

For an independent-measures study:

Null Hypothesis: There are no significant mean differences between the two treatments.

Alternate Hypothesis: There are significant mean differences between the two treatments.

Software procedure:

Step-by-step procedure to run the t test using the SPSS software is.

• Enter the name of two variables in variable view>data and treatments
• Enter the values of both the treatments in one column named data.
• Enter 1 consecutive five times and 2 five times under the variable treatments

b.

To determine
There are any significant mean differences between the two treatments.

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