Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 Student 8 Student 9 Height (inches) 63 67 68 68 69 70 71 74 75 Weight (lbs) 140 160 140 149 165 125 235 260 190 1. Construct a confidence interval to estimate the mean height and the mean weight. ∝=0.05 a. Find the sample mean and the sample standard deviation of the height. b. Find the sample mean and the sample standard deviation of the weight. c. Construct a confidence interval to estimate the mean height.
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| Student 1 | Student 2 | Student 3 | Student 4 | Student 5 | Student 6 | Student 7 | Student 8 | Student 9 | |
| Height (inches) | 63 | 67 | 68 | 68 | 69 | 70 | 71 | 74 | 75 |
| Weight (lbs) | 140 | 160 | 140 | 149 | 165 | 125 | 235 | 260 | 190 |
1. Construct a confidence
∝=0.05
a. Find the sample mean and the sample standard deviation of the height.
b. Find the sample mean and the sample standard deviation of the weight.
c. Construct a confidence interval to estimate the mean height.
d. Construct a confidence interval to estimate the mean weight.
2. Test a claim that the mean height of WCU students is not equal to 64 inches using the p-value method or the traditional method. ∝=0.05
a. State H0 and H1
b. Find the p value or critical value(s). (Use the tables on the green sheet)
c. Draw a conclusion.
3. a. Find the
b. Construct the equation of the regression line.
c. Predict the weight of a student who is 68 inches tall.
4. Write a well-developed paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether or not you can trust the result?
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