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

Author Question: A population has a mean of 100 and a standard deviation of 15. If samples of size N= 25 are ... (Read 91 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
on: Jun 20, 2018
A population has a mean of 100 and a standard deviation of 15. If samples of size N= 25
  are randomly drawn from this population, then what proportion of sample means will fall
  between 97 to 103?
 
  a. .6826
  b. .3413
  c. .5000
  d. .9544

Question 2

Assume that intelligence test scores are approximately normally distributed with a mean
  of 100 and a standard deviation of 16. Thus, about _____ percent of the people have IQ
  scores _____ .
 
  a. 50; between 100 and 116
  b. 50; higher than 116
   c. 68; between 84 and 116
  d. 34; lower than 100


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

C


RYAN BANYAN

  • Member
  • Posts: 563
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Superior view of heart valves illustrating position, size, and shape of each valve. Superior view of heart valves illustrating position, size, and shape of each valve.
Nose Size Nose Size
Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
Population and Settlement Population and Settlement
Measuring the client’s weight with a standard platform scale Measuring the client’s weight with a standard platform scale
A hypothesis test is performed to test the claim that a population proportion is greater than ... A hypothesis test is performed to test the claim that a population proportion is greater than ...
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library