Consider H0 40 versus H1 40 a A random sample of 64 observations taken from this population produced a sample mean of 43 and a standard deviation of 5 Using 025, would you reject the null hypothesis b Another random sample of 64 observations taken from the same population produced a sample mean of ...

a Step 1 H 0 40 H 1 40 Step 2 Since the population standard deviation is unknown and the sam ...

Consider H0: = 40 versus H1: > 40. a. A random sample of 64 observations

Question:

Consider H0: µ = 40 versus H1: µ > 40.
a. A random sample of 64 observations taken from this population produced a sample mean of 43 and a standard deviation of 5. Using α = .025, would you reject the null hypothesis?
b. Another random sample of 64 observations taken from the same population produced a sample mean of 41 and a standard deviation of 7. Using α = .025, would you reject the null hypothesis?
Comment on the results of parts a and b.