Question: Over a period of years, a toothpaste has received a mean rating of 5.9, on a 7-pointscale,for overall customer satisfaction with the product. Because of a minor unadvertised change in the product,there is concern that the customer satisfaction may have changed.Suppose the satisfaction ratings from a sample of 60 customers have a mean of 5.60 and a standard deviation of .87. Do these data indicate that the mean satisfaction rating is different from 5.9? Test with α=.05 What is the p-value for the test? Draw a curve to support your explanation.