4.26 Suppose that monthly collections for home delivery of the New York Times in a large suburb of New York City are approximately normally distributed with mean $150 and standard deviation $20. A random sample of 10 delivery persons in a nearby suburb is taken; the arrayed data for monthly collections in dollars are:

90, 106, 109, 117, 130, 145, 156, 170, 174, 190 Test the null hypothesis that the same normal distribution model applies to this suburb, using the most appropriate test.