Question
Asked Jan 17, 2020
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Assessing Normality Listed below are the recent salaries (in millions of dollars) of players on the San Antonio Spurs professional basketball team.

a. Do these salaries appear to come from a population that has a normal distribution? Why or why not?

b. Can the mean of this sample be treated as a value from a population having a normal distribution? Why or why not?

1.1 0.9
1.8
1.4
1.1
2.1
12.5 10.4 9.3 7.0 4.O 3.1 2.9
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1.1 0.9 1.8 1.4 1.1 2.1 12.5 10.4 9.3 7.0 4.O 3.1 2.9

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Expert Answer

Step 1

Note: In this context, software usage is not mentioned. So, MINITAB software is used to test the normality assumption.

Step 2

a.

Procedure to obtain the histogram by using the MINITAB software is as follows:

  • Choose Graph > Histogram.
  • Choose Simple, and then click OK.
  • In Graph variables, enter the column of Salaries.
  • Click OK.
Statistics homework question answer, step 2, image 1
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Step 3

Procedure to obtain the normal quantile plot by using the MINITAB software is as follows:

  • Choose Graph > Probability Plot.
  • Choose Single, and then click OK.
  • In Graph variables, enter the column of Salaries.
  • In the graph dialog box, click Distribution.
  • Clic...
Statistics homework question answer, step 3, image 1
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