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. Identify the test statistic and p-value. Right arm Left arm 146 165 OAT= -4.01, p-value = 0.016 OB. T = -3.07, p-value = 0.037 OC. T = -2.32, p-value = 0.081 O D. T = -1.93, p-value = 0.127 136 114 130 136 177 187 146 135

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The salaries of a random sample of 12 teachers from state A and 12 teachers from state B are shown in the table. At alpha = 0.05, is there enough evidence to support the claim that there is a difference in the salaries earned by teachers in state A and state B? Calculate the test statistic.

 

  A.

0.66

  B.

1.41

  C.

-0.84

  D.

-2.17

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. Identify the test statistic and p-value.
Right arm
Left arm
146
165
O A. T = -4.01, p-value = 0.016
O B.T = -3.07, p-value = 0.037
O C. T = -2.32, p-value = 0.081
O D. T = -1.93, p-value = 0.127
136 114
177 187
130 136
146 135
Transcribed Image Text: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. Identify the test statistic and p-value. Right arm Left arm 146 165 O A. T = -4.01, p-value = 0.016 O B.T = -3.07, p-value = 0.037 O C. T = -2.32, p-value = 0.081 O D. T = -1.93, p-value = 0.127 136 114 177 187 130 136 146 135
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