Question

NARRBEGIN: SA_86_90
A statistics professor has just given the final examination in his introductory statistics course. In particular, he is interested in learning how his class of 50 students performed on this exam. The data are shown below.
78727375797275777178
83847181827971738974
75937488839082796273
88767676808484917076
74688087928479809174
NARREND
A cannery claims that its sardine cans have a net weight of 8 oz., with a standard deviation of 0.1 oz. You take a simple random sample of 30 cans and encounter a sample mean of 7.85 oz. Are you inclined to believe the claim?

Answer

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