T test

A researcher wishes to see if the average number of snow days a school takes per year is greater than 10. A random sample of 40 schools had a mean number of snow days of 8.5. The standard deviation of the population is 3.4. Is there enough evidence to support the researcher's claim at a=0.01. Attach File Browse Local Files QUESTION 6 Perform a hypothesis test, using the t-test method for the example below. List all 5 steps of the test being performed. A researcher found that a family of 4 on average eats out 3 times a week. Believing the average is too high, the researcher selected a random sample of 20 families and found the mean number of times they eat out a week to be 2.5 and the standard deviation to be 0.75. At a= 0.05, is there enough evidence to support her claim. Attach File Browse Local Files Save A