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Essentials of Statistics for the B...

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

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

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

A researcher conducts a study comparing two different treatments with a sample of n = 16 participants in each treatment. The study produced the following data:

Treatment 1: 6 7 11 4 19 17 2     5

9 13 6 23 11 4 6 1

Treatment 2: 10 9 6 6    1 11 8 6 3

  1. 2 11 1 12 7 10    9
  • a. Calculate the mean for each treatment. Based on the two means, which treatment produces the higher scores?
  • b. Calculate the median for each treatment. Based on the two medians, which treatment produces the higher scores?
  • c. Calculate the mode for each treatment. Based on the two modes, which treatment produces the higher scores?

a.

To determine

To Find: The mean of the two treatments.

To identify: Which treatment produce the higher scores based on the two means.

Explanation

Given info:

The two-treatments each of size 16 is provided in the question.

Calculations:

Software procedure:

Step-by-step procedure to obtain the X for both the treatments using the SPSS software:

  • Go to Variable View> Enter the name of the variable as Treatment1, and Treatment2
  • Go to Data View>Enter the values of Treatment1, and Treatment2
  • Choose Analyze > Descriptive Statistics> choose Descriptive.
  • Select Treatment1, Treatment2 and move it under variable(s)> Choose Options> Select Sum.
  • Choose Continue> choose OK.

Output using the SPSS software is given below:

b.

To determine

To Find: The median of the two treatments.

To identify: Which treatment produce the higher scores based on the two medians.

c.

To determine

To Find: The mode of the two treatments.

To identify: Which treatment produce the higher scores based on the two modes.

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