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A business receives supplies of copper tubing where the supplier

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A business receives supplies of copper tubing where the supplier has said that the average length is 26.70 inches

so that they will fit into the business’ machines. A random sample of 48 copper tubes finds they have an average length of 26.75 inches. The population standard deviation is assumed to be 0.20 inches. At α=0.05, should the business reject the supplier’s claim?

A) Yes, since p<α, we reject the null and the null is the claim

B) Yes, since p>α, we fail to reject the null and the null is the claim

C) No, since p>α, we fail to reject the null and the null is the claim

D) No, since p>α, we reject the null and the null is the claim

 
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