For a sample of 10 observations drawn from a normally distributed population, we obtain the sample mean and the sample variance as 50 and 75, respectively. We want to determine whether the population variance is greater than 70. The test statistic is
A) 1.645.
B) 3.325.
C) 9.642.
D) 16.919.

Question

For a sample of 10 observations drawn from a normally distributed population, we obtain the sample mean and the sample variance as 50 and 75, respectively. We want to determine whether the population variance is greater than 70. The  test statistic is
A) 1.645. 
B) 3.325. 
C) 9.642. 
D) 16.919.

Quizplus · Accepted Answer

The Answer of For a sample of 10 observations drawn from a normally distributed population, we obtain the sample mean and the sample variance as 50 and 75, respectively. We want to determine whether the population variance is greater than 70. The  test statistic is
A) 1.645. 
B) 3.325. 
C) 9.642. 
D) 16.919.

For a Sample of 10 Observations Drawn from a Normally