Answer quick Alex went for a walk.
D(t) models the distance Alek walked (in kilometers) after t hours.
What does the statement D(0.5) < D(1) - D(0.5) mean?

(Choice A)
A
The time it took Alek to walk the first half kilometer is shorter than the time it took him to walk the following half kilometer.

(Choice B)
B
The distance Alek has walked after walking for an hour is greater than the distance he has walked after half an hour.

(Choice C)
C
The distance Alek walked during the first half hour is shorter than the distance he walked during the following half hour.

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95