A researcher was interested in whether the mean hours of sleep differed by sex. The table below
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Question:
- A researcher was interested in whether the mean hours of sleep differed by sex. The table below contains summary statistics for males and females in her class. You are asked to test (useAlpha= 0.05) whether there is a difference in the mean hours of sleep by sex. (15 points)
Note :Include calculation steps and formula for all the questions
Sex | Sample Size | Means Hours of Sleep | Standard Deviation |
Males | 16 | 6.40 | 0.99 |
Females | 75 | 6.95 | 1.46 |
- Hypothesis statements:
H0:
HA:
- x1-x2=
- SE =
- dfconservative= [df]
- Test statistic= [t] =
- p-value approximation =
- Conclusion of significance:
Related Book For
Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
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