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

Author Question: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, ... (Read 91 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jul 24, 2018
If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X >= 75) is:
 a. 0.125
  b. 0.500
  c. 0.625
  d. 0.975
  e. 0.250

Question 2

Suppose in testing a hypothesis about a proportion, the z test statistic is computed to be 1.92 . The null hypothesis should be rejected if the chosen level of significance is 0.01 and a two-tailed test is used.
  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

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

F


rosent76

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Jul 24, 2018
Thanks


dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

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?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Range of Motion of the Wrist and Hand Joints, Radial and Ulnar Deviation of the Wrist Range of Motion of the Wrist and Hand Joints, Radial and Ulnar Deviation of the Wrist
Random Random
An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ... An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ...
Variable Gases: Ozone Variable Gases: Ozone
How to manually find the mean, variance, and standard deviation for a set of numbers How to manually find the mean, variance, and standard deviation for a set of numbers
How to fully analyze the standard and factored form of a quadratic equation (Question 1) How to fully analyze the standard and factored form of a quadratic equation (Question 1)
Video: Inflammation Animation

For a complete list of videos, visit our video library