One of the most common sources of random cause variation is the ...

[yoooooman]

One of the most common sources of random cause variation is the people who are working in the process.
  Indicate whether the statement is true or false

Question 2

A random sample of size 25 taken from a normally distributed population resulted in a sample standard deviation of a 0.93054 . The lower and upper limits of a 99 confidence interval for the population variance would be:
 a. 9.886 and 45.559
  b. 3.144 and 6.750
  c. 0.678 and 1.449
  d. 0.456 and 2.102
  e. 1.493 and 6.430

[Brummell1998]

Answer to Question 1

T

Answer to Question 2

D

[yoooooman]

Gracias!

[gcook]

Excellent