Author Question: In testing the difference between the means of two normal populations using two independent samples ... (Read 97 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
In testing the difference between the means of two normal populations using two independent samples when the population variances are unequal, the sampling distribution of the resulting statistic is:
 a. normal. c. approximately normal.
  b. Student-t. d. approximately Student-t.

Question 2

To calculate the five-period moving average for a time series, we average the value in that time period, the values in the two preceding time periods, and the values in the two following time periods.
  Indicate whether the statement is true or false



patma1981

  • Sr. Member
  • ****
  • Posts: 292
Answer to Question 1

D

Answer to Question 2

T



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

For a complete list of videos, visit our video library