Question: The manager at Air Express believes that the weights of

The manager at Air Express believes that the weights of packages shipped recently are less than those in the past. Records show that in the past, packages have had a mean weight of 36.5 lb and a standard deviation of 14.2 l
b. A random sample of last month’s shipping records yielded the following 64 data values:
Is this sufficient evidence to reject the null hypothesis in favor of the manager’s claim? Use a _ 0.01.



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  • CreatedAugust 28, 2015
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