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

Author Question: If X is a normal random variable with a standard deviation of 10, then 3X has a standard deviation ... (Read 213 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jun 24, 2018
If X is a normal random variable with a standard deviation of 10, then 3X has a standard deviation equal to:
 a. 10 b. 13
  c. 30 d. 90

Question 2

A test with a 0.10 significance level has a larger rejection region than a test with a 0.05 significance level.
 a. True
  b. False
   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

maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

TRUE


audragclark

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jun 24, 2018
Correct answers!


maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jun 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Comparison of normal-shaped erythro- cytes and the abnormal sickle shape noted in patients with sick Comparison of normal-shaped erythro- cytes and the abnormal sickle shape noted in patients with sick
EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic
Neutrophils in a normal blood smear. Neutrophils in a normal blood smear.
a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments. a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments.
Normal electrocardiogram tracing Normal electrocardiogram tracing
Find the equation of the normal line to f(x)=sinx+cosx at x = π. Find the equation of the normal line to f(x)=sinx+cosx at x = π.
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

For a complete list of videos, visit our video library