Question: The human resources department at Red Rock College was summarizing demographic information about all the Associate Professors in the Geology Department. Data for the population of four was collected. The data is as follows:

32

35

36

39

1. Compute the population standard deviation for this data. [COMMENTS & HINTS: A computational table is expected for full credit. Feel free to utilize software or a calculator to confirm or check your answer. Do not round!]

1. Compute or report the population variance. [COMMENTS & HINTS: Again, feel free to utilize software or a calculator to confirm or check your answer. This measure is determined as part of the standard deviation computations, correct? Do not round!]
2. Complete the following reasonable conclusion about the number of seniors assigned to each guidance counselor at the school: "On average, the age of the Associate Professors in the Geology Department at Red Rock Canyon was ___ years, give or take ___ years." [COMMENTS & HINTS: Rewrite the complete sentence.]
3. Measure the effect size by reporting the coefficient of variation, expressed in percentage form. [COMMENTS & HINTS: Round this answer to the nearest whole percentage.]

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