Unformatted text preview: b. Determine the p-value c. Develop a 95% confidence interval and interpret in two ways. 3. A bath soap manufacturing process is designed to produce a mean of 120 bars of soap per batch. Quantities over or under this standard are undesirable. A sample of 10 patches shows the following number of bars of soap. 108,118,120,122,119,113,124,122,120,123 a. Test at the .10 level of significance whether the mean number of bars is equal to 120. Use the five step procedure. b. Estimate the p-value c. Develop a 90% confidence interval and interpret in two ways. 4. The dean insists that the Mean GPA of stat students in the summer is 2.9. A random sample of 9 students obtains the following GPAs. 3.2, 3.3, 3.9, 2.8, 3.0, 3.3, 3.4, 2.7, 3.7 a. Test at the .05 level of significance, test the dean’s assumption. Use the five step procedure. b. Estimate the p-value c. Develop a 95% confidence interval and interpret in two ways....
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- Fall '07
- Statistics, Keeton Department Store, first-year MBA students, step procedure.