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1. A labor union is testing whether a professional development program in a certain industry has been successful in raising the scores of new employees on a standardized test. The given table contains data for one company in the industry. The data shows the scores of the new employees who have undergone the professional development program (the treatment group) and the scores of those who have not (the control group). Control group 82 77 Treatment group 92 84 a. State the null hypothesis for the experiment. 82 88 78 90 72 95 89 84 70 68 88 85 90 85 92 80 87 79 85 94

1. A labor union is testing whether a professional development program in a certain industry has been successful in raising the scores of new employees on a standardized test. The given table contains data for one company in the industry. The data shows the scores of the new employees who have undergone the professional development program (the treatment group) and the scores of those who have not (the control group). Control group 82 77 Treatment group 92 84 a. State the null hypothesis for the experiment. 82 88 78 90 72 95 89 84 70 68 88 85 90 85 92 80 87 79 85 94

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 25PPS
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1. A labor union is testing whether a professional development program in a certain industry has been successful in raising the scores of new employees on a standardized test. The given table contains data for one company in the industry. The data shows the scores of the new employees who have undergone the professional development program (the treatment group) and the scores of those who have not (the control group). 78 90 72 80 87 70 68 88 85 95 89 84 79 85 94 90 85 92 82 77 82 Control group Treatment group 92 84 88 a. State the null hypothesis for the experiment. b. Compare the results for the control group and the treatment group. Do you think that the researcher has enough evidence to reject the null hypothesis?
Transcribed Image Text:1. A labor union is testing whether a professional development program in a certain industry has been successful in raising the scores of new employees on a standardized test. The given table contains data for one company in the industry. The data shows the scores of the new employees who have undergone the professional development program (the treatment group) and the scores of those who have not (the control group). 78 90 72 80 87 70 68 88 85 95 89 84 79 85 94 90 85 92 82 77 82 Control group Treatment group 92 84 88 a. State the null hypothesis for the experiment. b. Compare the results for the control group and the treatment group. Do you think that the researcher has enough evidence to reject the null hypothesis?
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