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

Author Question: Given that the random variable X is normally distributed with a mean of 80 and a standard deviation ... (Read 95 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Jun 24, 2018
Given that the random variable X is normally distributed with a mean of 80 and a standard deviation of 10, P(85 X 90) is:
 a. 0.5328 b. 0.3413
  c. 0.1915 d. 0.1498

Question 2

The power of a test is the probability of rejecting the null hypothesis when the alternative hypothesis is true.
 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

frankwu0507

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

d

Answer to Question 2

TRUE


penza

  • Member
  • Posts: 1,022
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Betelgeuse is a semiregular variable star Betelgeuse is a semiregular variable star
Urinalysis. During a simple urinalysis, a stick with colored blocks is dipped into a urine specimen. Urinalysis. During a simple urinalysis, a stick with colored blocks is dipped into a urine specimen.
Standard Medical Record and Types of Reports Found in Record Standard Medical Record and Types of Reports Found in Record
Generation of diversity by variable V-J joining mechanisms Generation of diversity by variable V-J joining mechanisms
How to quickly find the vertex of a quadratic equation that is in standard form How to quickly find the vertex of a quadratic equation that is in standard form
Standard Electrode Potentials at 25 Degrees Standard Electrode Potentials at 25 Degrees
Video: Muscular Dystrophy

For a complete list of videos, visit our video library