This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Random samples of size 81 are taken from an infinite population whose mean and standard deviation ... (Read 223 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 45 and 9, respectively. The mean and standard error of the sampling distribution of the sample mean are:
 a. 45 and 9 c. 45 and 9/81
  b. 45/81 and 9/81 d. 45/81 and 9/81

Question 2

The coefficient of determination is equal to the coefficient of correlation squared.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dyrone

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

T


itsmyluck

  • Member
  • Posts: 546
Reply 2 on: Jun 24, 2018
Excellent

daiying98

  • Member
  • Posts: 354
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Chart depicting pupillary size in millimeters Chart depicting pupillary size in millimeters
Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a
Roller lifter from a GM Duramax 6.6 liter V-8 diesel engine. Notice the size of this lifter compared ... Roller lifter from a GM Duramax 6.6 liter V-8 diesel engine. Notice the size of this lifter compared ...
Population size Population size
Population Growth in America Population Growth in America
One standard drink = 1/2 ounce of ethyl alcohol One standard drink = 1/2 ounce of ethyl alcohol
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library