Indicate premature battery failure

Reference no: EM1321165

Question: A battery was designed to last an average of 30 hours in a radio. Complaints are pouring in that the batteries are junk and do not perform as expected. You test 24 batteries and find:

X = 29.3
S = 2.95

Normality assumed, Is there sufficient evidence to indicate premature battery failure at the α = .05 level?

Reference no: EM1321165

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