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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

  1. For the following scores.
X Y
7 6
9 6
6 3
12 5
9 6
5 4
  1. a. Sketch a scatter plot showing the sax data points.
  2. b. Just looking at the scatter plot, estimate the value of the Pearson correlation.
  3. c. Compute the Pearson correlation.

(a)

To determine

To plot: The scatter plot for given scores.

Explanation

Given info:

The data represents the score of the two variables X and Y.

Calculation:

Software procedure:

Step by step procedure to draw the bar graph for the frequency distribution table using SPSS software:

  • Enter all the scores in one column of the data editor, probably VAR0OOOI.
  • Click Analyze on the tool bar, select Descriptive Statistics, and click on Frequencies...

(b)

To determine

To Find: The Pearson correlation coefficient from the scatter plot.

(c)

To determine

To Find: The Pearson’s correlation coefficient.

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