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Use the p-value approach to conduct the following left-tailed hypothesis test at the 10% significance level.Assume that the two populations are normally distributed.
Sample 1:
= 15.7,
= 0.77,and n1 = 11
Sample 2: = 19.2,
= 0.82,and n2 = 13
[Hint: You may want to first convert the above left-tailed test into a right-tailed test by switching the two variances.]
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