Chapter 15, Problem 1RE

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

- For the following scores.

X | Y |

7 | 6 |

9 | 6 |

6 | 3 |

12 | 5 |

9 | 6 |

5 | 4 |

**a.**Sketch a scatter plot showing the sax data points.**b.**Just looking at the scatter plot, estimate the value of the Pearson correlation.**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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