You are given the following information obtained from a random ...

[P68T]

You are given the following information obtained from a random sample of four observations selected from a large, normally distributed population. 25 47 32 56
 a. What is the point estimate of ?
  b. Construct a 95 confidence interval for .
  c. Construct a 90 confidence interval for .
  d. Discuss why the 90 and 95 confidence intervals are different.

Question 2

A feasible solution is one that satisfies at least one of the constraints in the problem.
  Indicate whether the statement is true or false

[nital]

Answer to Question 1

a. 40
b. 17.613 to 62.387
c. 23.445 to 56.555
d. As the level of confidence increases, the confidence interval gets wider.

Answer to Question 2

F