2. Does helping another person affect the helper's life satisfaction? To find out, a researcher randomly sampled 64 people and asked each of them to help one other person that day. At the end of the day, each participant completed a standardized measure of life satisfaction. The mean score for the sample was 51.60. In the general population, the mean score on this measure is 50 and the standard deviation is 6. Test the hypothesis that helping affects life satisfaction (a = .05, two-tailed). You don't have to outline all 5 steps of hypothesis testing, but specify the properties of the comparison distribution, the critical value of the test statistic for rejecting the null hypothesis, the obtained test statistic, and the final decision. What are the lower and upper confidence limits for the 95% confidence interval of the mean life satisfaction of people who have helped someone else that day? Compute the standardized effect size.
2. Does helping another person affect the helper's life satisfaction? To find out, a researcher randomly sampled 64 people and asked each of them to help one other person that day. At the end of the day, each participant completed a standardized measure of life satisfaction. The mean score for the sample was 51.60. In the general population, the mean score on this measure is 50 and the standard deviation is 6. Test the hypothesis that helping affects life satisfaction (a = .05, two-tailed). You don't have to outline all 5 steps of hypothesis testing, but specify the properties of the comparison distribution, the critical value of the test statistic for rejecting the null hypothesis, the obtained test statistic, and the final decision. What are the lower and upper confidence limits for the 95% confidence interval of the mean life satisfaction of people who have helped someone else that day? Compute the standardized effect size.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:2.
Does helping another person affect the helper's life
satisfaction? To find out, a researcher randomly sampled 64 people
and asked each of them to help one other person that day. At the
end of the day, each participant completed a standardized measure
of life satisfaction. The mean score for the sample was 51.60. In the
general population, the mean score on this measure is 50 and the
standard deviation is 6.
Test the hypothesis that helping affects life satisfaction (a
= .05, two-tailed). You don't have to outline all 5 steps of
hypothesis testing, but specify the properties of the comparison
distribution, the critical value of the test statistic for rejecting the
null hypothesis, the obtained test statistic, and the final decision.
What are the lower and upper confidence limits for the 95%
confidence interval of the mean life satisfaction of people who
have helped someone else that day?
Compute the standardized effect size.
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