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Find test statistics-t-value and p-value

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Reference no: EM132643285

A service Table below shows collected results (sample data) in min.

Advertises that it will take them in average 20 min to fix the problem. Independent contractor was hired to check how long it will really take to fix the common problem. Test was done nine times.

17 19 20 30 29 25 21 24 40

Apply Hypothesis Testing at the 1% level to check if average time to fix the problem takes 20 min. Find Test Statistics, t-value, and p-value to make the decision.

Reference no: EM132643285

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