This topic contains a solution. Click here to go to the answer

Author Question: In one town, monthly incomes for men with college degrees are found to have a standard deviation of ... (Read 141 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
In one town, monthly incomes for men with college degrees are found to have a standard deviation of 650.
 
  Use a 0.01 significance level to test the claim that for men without college degrees in that town, incomes have a higher standard deviation. A random sample of 22 men without college degrees resulted in incomes with a standard deviation of 977.

Question 2

Rolling a single loaded die 50 times, keeping track of the fives rolled.
 
  A) Procedure results in a binomial distribution.
  B) Not binomial: the probability p does not remain constant for each trial.
  C) Not binomial: there are more than two outcomes for each trial.
  D) Not binomial: the trials are not independent.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wuly

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

Test statistic: X2 = 47.444. Critical values: X2 = 38.932. Reject . There is sufficient evidence to support the claim that incomes of men without college degrees have a standard deviation greater than 650.

Answer to Question 2

A




piesebel

  • Member
  • Posts: 565
Reply 2 on: Aug 1, 2018
Excellent


Joy Chen

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

For a complete list of videos, visit our video library