Connector Rods A producer of machineparts claimed that the
Chapter 10, Problem 113(choose chapter or problem)
Connector Rods A producer of machineparts claimed that the diameters of the connector rodsproduced by his plant had a variance of at most.03 inch2. A random sample of 15 connector rods fromhis plant produced a sample mean and variance of.55 inch and .053 inch2, respectively.a. Is there sufficient evidence to reject his claim atthe a .05 level of significance? b. Find a 95% confidence interval for the variance ofthe rod diameters.
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