# Question: Bob s Sporting Goods believes the average age of its customers

Bob’s Sporting Goods believes the average age of its customers is 40 or less. A random sample of 60 customers was surveyed, and the average customer age was found to be 42.7 years. Assume the standard deviation for customer age is 8.0 years. Using σ = 0.02, answer the following questions:

a. Does this sample provide enough evidence to refute the age claim made by Bob’s Sporting Goods?

b. Determine the p value for this test.

c. Verify your results using PHStat.

a. Does this sample provide enough evidence to refute the age claim made by Bob’s Sporting Goods?

b. Determine the p value for this test.

c. Verify your results using PHStat.

## Answer to relevant Questions

According to the government lending institution Sallie Mae, students graduating from college have an average credit card debt of $ 4,100. A random sample of 50 graduating seniors was selected, and their average credit card ...Consider the following hypothesis statement using α = 0.05 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. a. Calculate the appropriate test ...Consider the following hypothesis statement using α = 0.10 and data from two independent samples: a. Calculate the appropriate test statistic and interpret the result. b. Calculate the p value and interpret the result. c. ...The following two samples were collected as matched pairs: a. Construct a 90% confidence interval to estimate the difference in means between the populations from which Samples 1 and 2 were drawn. b. What conclusions can be ...Consider the following data from two independent samples. Construct a 90% confidence interval to estimate the difference in population proportions. x1 = 46 x2 = 48 n1 = 90 n2 = 80Post your question