Suppose a biologist is going to test the following hypothese…

Suppose a biologist is going to test the following hypotheses:H0: The mean age death (due to natural causes) for adult male grizzly bears is known to be 9.7 years.Ha: The mean age death (due to natural causes) for adult male grizzly bears is known to be different than 9.7 years.Which of the following is a type I error?

A hypothesis test is to be performed. Determine the null and…

A hypothesis test is to be performed. Determine the null and alternative hypotheses.At one school, the average amount of time that tenth-graders spend watching television each week is The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.