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

Author Question: The number of first-year students who will decide to live in dormitories is a binomial random ... (Read 79 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Jul 24, 2018
The number of first-year students who will decide to live in dormitories is a binomial random variable X with n = 1000 and p = 0.50 . Use the normal approximation with continuity correction to approximate the probability that X will be no more than 490, P(X  490).
 a. 0.2743
  b. 0.2709
  c. 0.7291
  d. 0.7357

Question 2

A random sample of 250 third graders scored an average of 3.2 on a standardized reading test. The standard deviation was 0.95 . What is the standard error of the sample mean?
 a. 0.95
  b. 0.202
  c. 0.0038
  d. 0.060


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

D


TFauchery

  • Member
  • Posts: 500
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

A diversity of species live within the soils, the ecology of which remains to be explored. A diversity of species live within the soils, the ecology of which remains to be explored.
Students Students
Changes in chromosome number Changes in chromosome number
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
You deposit $2000 each year into an account earning 4% interest compounded annually. How much ... You deposit $2000 each year into an account earning 4% interest compounded annually. How much ...
Students working around a computer Students working around a computer
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

For a complete list of videos, visit our video library