An HR Director wants to know if there is a difference between Dept 1 and Dept 2 in their employee performance evaluation ratings. The performance evaluation scores for the two departments are below. Perform a t-Test on the data to answer the Director’s question. Is there a significant difference in the two departments’ performance evaluation ratings? Explain.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 11PPS
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  1. An HR Director wants to know if there is a difference between Dept 1 and Dept 2 in their employee performance evaluation ratings. The performance evaluation scores for the two departments are below. Perform a t-Test on the data to answer the Director’s question.
    1. Is there a significant difference in the two departments’ performance evaluation ratings? Explain.
    2. Do you reject or fail to reject the Ho?

Dept 1

Dept 2

3.15

3.2

3.1

3.25

2.95

3.1

3.2

3.6

3.4

2.9

3.12

2.8

3.6

3.1

2.5

3.5

2.8

3.4

2.75

2.8

2.1

2.7

3

3.7

3.2

3.2

3.5

3.5

3.8

3.2

3.2

2.8

3.4

2.15

3.2

2.9

2.6

3.16

2.8

3.14

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