(#9.116 full question on picture thanks in advance)
(if u cant read question part on picture) assume the underlying population is normal and = 2 pounds. Is there any evidence to suggest that the true mean weight of the blocks is different from 40 pounds? Use = 0.05 and compute the p value to draw a conclusion
x-bar = sum of data / n (8) = 40.9125
z score = 40.9125-40 (hypothesized mean) / (2/sqrt(8)) = 1.29047
Using the z-table we find that sample would only be in the 90.14 percentile of all possible samples (p-value of .0984 *2= .1971), so our p-value is not significant at the .05 level.