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Essentials of Statistics for the B...

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

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Chapter
Section
BuyFindarrow_forward

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.

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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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