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. What is the Null Hypothesis (Ho:)? What is the Research Question or Alternative Hypothesis (Ha:)? Perform the t-Test and show the results (two-sample assume equal variance). 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
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. What is the Null Hypothesis (Ho:)? What is the Research Question or Alternative Hypothesis (Ha:)? Perform the t-Test and show the results (two-sample assume equal variance). 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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
Related questions
Question
- 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.
- What is the Null Hypothesis (Ho:)?
- What is the Research Question or Alternative Hypothesis (Ha:)?
- Perform the t-Test and show the results (two-sample assume equal variance).
|
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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which figure is the null hypothesis, and which figure is the alternative hypothesis
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