Question

Cholesterol levels of adult males are approximately normally distributed with a mean of mg/dL and a listed standard deviation of . Some researchers claim that the standard deviation of cholesterol levels of adult males is less than . Suppose that we want to carry out a hypothesis test to see if the actual standard deviation of cholesterol levels of adult males is less than . State the null hypothesis and the alternative hypothesis that we would

Answer 1

You have no data indicated, probably because copy and paste does not work.

Ho = null hypothesis = no difference
H1 = alternate hypothesis = SD < ?

I hope this helps a little. If not, repost with adequate data.