CHALLENGE ACTIVITY 6.3.1: Hypothesis test for a population mean. 471522.2159812.qx3zqy7 Jump to level 1 A pipes manufacturer makes pipes with a length that is supposed to be 10 inches. A quality control technician sampled 18 pipes and found that the sample mean length was 10.09 inches and the sample standard deviation was 0.19 inches. The technician claims that the mean pipe length is not 10 inches. What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 Does sufficient evidence exist at the = 0.05 significance level to support the technician's claim? Select Check Next 3 Feed