# Question: From a population of unknown mean and a standard

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.

**View Solution:**## Answer to relevant Questions

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 40.9 is found. Compare the concepts of estimation and hypothesis testing by completing the following: ...The drug manufacturer in Exercise 8.199 has a different viewpoint on the matter. It wants to market the new drug starting as soon as possible so that it can beat its competitors to the marketplace and make lots of money. Its ...a. Find the 0.95 confidence interval for m. b. Are the assumptions satisfied? Explain. Discuss the effect that each of the following has on the confidence interval: a. Point estimate b. Level of confidence c. Sample size d. Variability of the characteristic being measured “Tweens or teens” refers to the age group of students in seventh grade. Growth spurts are very common at this age. A sample of 12 randomly selected seventhgrade females in a New York City school resulted in the following ...Post your question