Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.01 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm 147 133 137 133 134 Left arm 176 178 190 143 134 In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesistest? Answer: H0: μd=0 H1: μd≠0 **Identify the test statistic. t=_______ (Round to two decimal places as needed.)
Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.01 significance level to test for a difference between the measurements from the two arms. What can be concluded?
|
Right arm |
147 |
133 |
137 |
133 |
134 |
|
|
Left arm |
176 |
178 |
190 |
143 |
134 |
In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesistest?
Answer:
H0: μd=0
H1: μd≠0
**Identify the test statistic.
t=_______ (Round to two decimal places as needed.)
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