# Question

From a population of unknown mean µ and a standard Deviation σ = 5.0 a sample of n = 100 is selected and the sample mean 41.5 is foun

d. Compare the concepts of estimation and hypothesis testing by completing the following:

a. Determine the 95% confidence interval for µ .

b. Complete the hypothesis test involving Ha: µ ≠ 40 using the p-value approach and a = 0.05.

c. Complete the hypothesis test involving Ha : µ ≠ 40 using the classical approach and a = 0.05.

d. On one sketch of the standard normal curve, locate the interval representing the confidence interval from part a; the z, p-value, and a from part b; and the z and critical regions from part c. Describe the relationship between these three separate procedures.

d. Compare the concepts of estimation and hypothesis testing by completing the following:

a. Determine the 95% confidence interval for µ .

b. Complete the hypothesis test involving Ha: µ ≠ 40 using the p-value approach and a = 0.05.

c. Complete the hypothesis test involving Ha : µ ≠ 40 using the classical approach and a = 0.05.

d. On one sketch of the standard normal curve, locate the interval representing the confidence interval from part a; the z, p-value, and a from part b; and the z and critical regions from part c. Describe the relationship between these three separate procedures.

## Answer to relevant Questions

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