A random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm. Assuming that the population stan
dard deviation is known to be 1.6 cm, use a 0.05 significance level to test the claim that the mean circumference of all pumpkins is equal to 39.9 cm.Do the following:_________.a) Write the hypotheses H0 and H1b) Calculate the z-scorec) Find corresponding probability to z-scoree) Write the decision and conclusion of the test of hypothesis.
