Question: With reference to Exercise 7.62, test the null hypothesis (sigma=600) psi for the compressive strength of the given kind of steel against the alternative hypothesis

With reference to Exercise 7.62, test the null hypothesis $\sigma=600$ psi for the compressive strength of the given kind of steel against the alternative hypothesis $\sigma>600$ psi. Use the 0.05 level of significance.

Data From Exercise 7.62

7.62 A random sample of 6 steel beams has a mean com-

7.62 A random sample of 6 steel beams has a mean com- pressive strength of 58,392 psi (pounds per square inch) with a standard deviation of 648 psi. Use this information and the level of significance = 0.05 to test whether the true average compressive strength of the steel from which this sample came is 58,000 psi. Assume normality.

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