A pipes manufacturer makes pipes with a length that is supposed to be 17 inches. A quality control technician sampled 38 pipes and found that the sample mean length was 17.08 inches and the sample standard deviation was v 0.28 inches. The technician claims that the mean pipe length is not 17 inches. What type of hypothesis test should be performed? 4 What is the test statistic? EX: 0.123 What is the number of degrees of freedom? EX12O Does sufcient evidence exist at the a = 0.1 significance level to support the technician's claim? Select V E: Feedback