An insurance company sets up a statistical test with a null hypothesis that the average time for processing a claim is 7 days, and an alternative hypothesis that the average time for processing a claim is greater than 7 days.
After completing the statistical test, it is concluded that the average time exceeds 7 days. However, it is eventually learned that the mean process time is really 7 days. What type of error occurred in the statistical test?
A) Type I error B) Type III error
C) Type II error D) No error occurred in the statistical sense.
Question 2
According to a recent study, 1 in every 7 women has been a victim of domestic abuse at some point in her life.
Suppose we have randomly and independently sampled twenty-five women and asked each whether she has been a victim of domestic abuse at some point in her life. Find the probability that at least 2 of the women sampled have been the victim of domestic abuse. Round to six decimal places.
A) 0.713804 B) 0.109532 C) 0.176664 D) 0.890468
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