Performing a Two-Sample F-Test In Exercises 19−26, (a) identify the claim and state H0, and Ha (b) find the critical value and identify the rejection region, (c) find the test statistic F, (d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. Assume the samples are random and independent, and the populations are
21. Heart Transplant Waiting Times The table at the left shows a sample of the waiting times (in days) for a heart transplant for two age groups. At α = 0.05, can you conclude that the variances of the wailing times differ between the two age groups? (Adapted from Organ Procurement and Transplantation Network)
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Elementary Statistics: Picturing the World (7th Edition)
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