« previous next »

Author Question: SAT scores have an average of 1200 with a standard deviation of 60 . A sample of 36 scores is ... (Read 164 times)

DyllonKazuo

  • Hero Member
  • *****
  • Posts: 565
on: Jun 24, 2018
SAT scores have an average of 1200 with a standard deviation of 60 . A sample of 36 scores is selected.
 a. What is the probability that the sample mean will be larger than 1224?
  b. What is the probability that the sample mean will be less than 1230?
  c. What is the probability that the sample mean will be between 1200 and 1214?
  d. What is the probability that the sample mean will be greater than 1200?
  e. What is the probability that the sample mean will be larger than 73.46?

Question 2

In a standard normal distribution, the range of values of z is from _____.
 a. minus infinity to infinity
  b. 1 to 1
  c. 0 to 1
  d. 3.09 to 3.09


kxciann

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .0082
b. .9986
c. .4192
d. .5
e. 1.0

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

DyllonKazuo

  • Hero Member
  • *****
  • Posts: 565
Reply #2 on: Jun 24, 2018
Thank you :)


kxciann

  • Sr. Member
  • ****
  • Posts: 356
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

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?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

A sample prescription written by a physician. A sample prescription written by a physician.
Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ... Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ...
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
Cumulative Standard Normal Distribution Cumulative Standard Normal Distribution
How to find the average value of a function How to find the average value of a function
(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur (left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur
Video: Bond types - Atomic structure and basis of bonds

For a complete list of videos, visit our video library