State the null and alternative hypotheses

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Reference no: EM13331545

A carpet company advertisesthat it will deliver your carpet within 15 days of purchase. Asample of 49 past customers is taken. The average deliverytime in the sample was 16.2 days. The standard deviation ofthe population (s) is known to be 5.6 days.

a. State the null and alternative hypotheses.

b. Using the critical value approach, test to determine if their advertisement islegitimate. Let a = .05

c. Using thep-value approach, test the hypotheses at the 5% level of significance.

Reference no: EM13331545

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