The manager of the quality department for a tire manufacturing company wants to know the average tensile strength of rubber used in making a certain...

1. The manager of the quality department for a tire manufacturing company wants to know the average tensile strength of rubber used in making a certain brand of radial tire. The population is normally distributed and the population standard deviation is known. She uses a Z test to test the null hypothesis that the mean tensile strength is 800 pounds per square inch. The calculated Z test statistic is a positive value that leads to a p-value of .005 for the test. If the significance level(α)is .01, the null hypothesis would be rejected. falseor true