A social psychologist recently developed a childhood-memories test that is intended to measure how people recall pleasant and unpleasant experiences from childhood. Scores on the test range from 1 (very unpleasant) to 100 (very pleasant). The psychologist standardized the test with a large group of college students (ages 18-25), and the mean score was p=60. The test was then given to a sample of n=25 individuals who were all between the ages of 40 and 45. The average score for this sample was 64.3 with SS (sum of squares)=600. Note: S?=SS-df (variance is equal to sum of squares divided by the degrees of freedom). What is your conclusion if you were to test the hypothesis using one- tailed test at a=0.05? O a. Reject the null hypothesis O b. Fail to reject the null hypothesis O c. Accept the null hypothesis Od. None of the above

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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A social psychologist recently developed a childhood-memories test that is intended to
measure how people recall pleasant and unpleasant experiences from childhood. Scores
on the test range from 1 (very unpleasant) to 100 (very pleasant). The psychologist
standardized the test with a large group of college students (ages 18-25), and the mean
score was p=60. The test was then given to a sample of n=25 individuals who were all
between the ages of 40 and 45. The average score for this sample was 64.3 with SS (sum
of squares)=600. Note: S?=SS÷df (variance is equal to sum of squares divided by the
degrees of freedom). What is your conclusion if you were to test the hypothesis using one-
tailed test at a=0.05?
O a. Reject the null hypothesis
O b. Fail to reject the null hypothesis
O c. Accept the null hypothesis
O d. None of the above
Transcribed Image Text:A social psychologist recently developed a childhood-memories test that is intended to measure how people recall pleasant and unpleasant experiences from childhood. Scores on the test range from 1 (very unpleasant) to 100 (very pleasant). The psychologist standardized the test with a large group of college students (ages 18-25), and the mean score was p=60. The test was then given to a sample of n=25 individuals who were all between the ages of 40 and 45. The average score for this sample was 64.3 with SS (sum of squares)=600. Note: S?=SS÷df (variance is equal to sum of squares divided by the degrees of freedom). What is your conclusion if you were to test the hypothesis using one- tailed test at a=0.05? O a. Reject the null hypothesis O b. Fail to reject the null hypothesis O c. Accept the null hypothesis O d. None of the above
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