This topic contains a solution. Click here to go to the answer

Author Question: A random sample of 144 observations has a mean of 20, a median of 21, and a mode of 22 . The ... (Read 68 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
A random sample of 144 observations has a mean of 20, a median of 21, and a mode of 22 . The population standard deviation is known to equal 4.8 . The 95.44 confidence interval for the population mean is _____.
 a. 15.2 to 24.8
  b. 19.2 to 20.8
  c. 19.216 to 20.784
  d. 21.2 to 22.8

Question 2

The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. What is the random variable in this experiment?
 a. Weight of football players
  b. 200 pounds
  c. 25 pounds
  d. Normal distribution



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emily12345

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

b

Answer to Question 2

a




jjjetplane

  • Member
  • Posts: 556
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review


blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

For a complete list of videos, visit our video library