A corporation sets its annual budget for a new plant on the assumption that the average weekly cost for repairs is to be μ = 1,200. To see whether this claim is realistic, 10 weekly repair cost figures are obtained from similar plants. The sample is assumed to be random and yield = 1,290 and s = 110. The computed t is 2.587. Use a = 0.05. Assume normality of weekly cost. Type of t-test μ = 1,200 μ#1,200 tabulated t degrees of freedom Decision Choose... Choose... Choose... Choose... Choose... Choose... + + + + + +

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