Answer (Choose 1 answer)
Let to.025; 15 = 2.131 to.05; 15= 1.753
The average spring snow depth on a certain plateau in the Sequoia National Forest has averaged 50 feet since it was first measured some 100 years ago. Test at the 5% significance level the assertion that there is a greater mean depth this year if the snow depths at 16 randomly selected sites had a mean of 57 feet and a standard deviation of 14.1 feet. Assume that the original population has normal distribution.
A. Fail to reject Ho
B. Reject Ho
Exit 28
