A random sample of 8 women resulted in systolic blood pressure levels with a mean of 148 and a standard deviation of 6.9. A random sample of 11 men resulted in systolic blood pressure levels with a mean of 141 and a standard deviation of 1.1. Use a 0.05 significance level and the critical value method to test the claim that blood pressure levels for women vary less than blood pressure levels for men. Enter the test statistic. (Round your answer to nearest hundredth.)
Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is ÎĽd = 0.
x / 5 3 4 3 3
y / 8 9 9 8 13
Compute the absolute value of the test statistic. (Round your answer to nearest hundredth. Hint: The correct test statistic is positive.)
