A sample mean, sample standard deviation, and sample size are given. Perform the required hypothesis test about the mean, , of the normal population from which the sample was drawn.

x=7.6 ,s=2.3,n=18,H₀: 10,H_a: <10, =0.01

A: Test statistic:t=-4.43. Critical value:t=-2.33.Do not rejectH₀. There is not sufficient evidence to support the claim that the mean is less than10minutes.

B: Test statistic:t=-4.43. Critical value:t=-2.552.RejectH₀. There is sufficient evidence to support the claim that the mean is less than10minutes.

C: Test statistic:t=-4.43. Critical value:t=-2.567.RejectH₀. There is sufficient evidence to support the claim that the mean is less than10minutes.

D: Test statistic:t=-4.43. Critical value:t=-2.33.RejectH₀. There is sufficient evidence to support the claim that the mean is less than10minutes.