Question
A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than 16 centimeters. The factory
A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than 16
centimeters. The factory believes that the length of the bolts exceeds this value and measures the length of 70
bolts. The sample mean bolt length was 16.06
centimeters. The population standard deviation is known to be =0.27
centimeters.
What is the test statistic z
?
What is the p
-value?
Does sufficient evidence exist that the length of bolts is actually greater than the mean value at a significance level of =0.05
?
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Discrete Mathematics Mathematical Reasoning And Proof With Puzzles, Patterns, And Games
Authors: Douglas E Ensley, J Winston Crawley
1st Edition
1118226534, 9781118226537
