[Answered] If X is a normal random variable with a standard deviation of 10, then 3X has a standard deviation ...

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Author Question: If X is a normal random variable with a standard deviation of 10, then 3X has a standard deviation ... (Read 127 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

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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

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Author Question: If X is a normal random variable with a standard deviation of 10, then 3X has a standard deviation ... (Read 127 times)

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