Based on a sample of 100 salmon, we find the sample mean lifespan is 18.9 months, with a sample standard deviation of 1.5 months. We wish to test the claim that for salmon the population mean lifespan is at most 20 months. The Claim, Opposite, Null and Alternate Hypothesis are: Claim: / 20 : H1, Alternate Hypothesis This problem is a hypothesis test of the population mean, J. a) Identify the type of tail(s)? left tail right tail two tails O O b) The test statistic is: -7.3333 c) Which Excel function should you use to find the p-value? NORM.S. DIST () T. DIST( ) Of O d) What is the p-value? Round results to two decimal places