QUESTION 19 Gueutal et al. (1995) tested the hypothesis that pregnancy would have an effect on performance appraisal ratings The data below has been shortened and simplified, but the results are similar to the original study. We obtain a random sample of 7 female employees who are pregnant and 8 female employees who are not pregnant. Performance ratings were made on a scale from 1 (poor) to 7 (excellent). Pregnant Not pregnant 17 15 15 Mean SS Variance25 21 What is
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![QUESTION 18
Gueutal et al. (1995) tested the hypothesis that pregnancy would have an effect on performance appraisal ratings. The data below has been
shortened and simplified, but the results are similar to the original study.
We obtain a random sample of 7 female employees who are pregnant and 8 female emplayees who are not pregnant. Performance ratings were
made on a scale from 1 (poor) to 7 (excellent).
Pregnant Not pregnant
IN
Mean
15
SS
15
Variance 2.5
3
21
3
What is the weighted variance S 7
QUESTION 19
Gueutal et al. (1995) tested the hypothesis that pregnancy would have an effect on performance appraisal ratings The data below has been
shortened and simplified, but the results are similar to the original study.
We obtain a random sample of 7 female employees who are pregnant and 8 female employees who are not pregnant. Performance ratings were
made on a scale from 1 (poor) to 7 (excellent).
Pregnant Not pregnant
18
3
21
17
Mean
IN
15
15
Variance 25
SS
What is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff3ae4365-0b57-4bea-bbcd-b4f1f0573fe2%2F889a1daa-bcec-415c-860b-74b4a5e83d2f%2Ftkrug26_processed.jpeg&w=3840&q=75)
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