« previous next »

Author Question: The ages of the members of a gym have a mean of 42 years and a standard deviation of 12. Use the ... (Read 7 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
on: Aug 1, 2018
The ages of the members of a gym have a mean of 42 years and a standard deviation of 12. Use the range rule of thumb to estimate the minimum and maximum usual ages.
 
  A) 18 years, 66 years B) 20 years, 68 years C) 17 years, 67 years D) 30 years, 54 years

Question 2

The chi-square test of independence compares to .
 
  a. sample means; population means
  b. sample marginals; population marginals
  c. observed frequencies; expected frequencies
  d. sample frequencies; population frequencies


meryzewe

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Aug 1, 2018
Answer to Question 1

A

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« 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?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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.

Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for
The Dingo was the first placental mammal introduced to Australia, around 4000 years ago The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
Nurses may collaborate with social workers, physicians, and other members of the health care team to Nurses may collaborate with social workers, physicians, and other members of the health care team to
Australopithecus sediba shares small brain size with other members of Australopithecus but also has Australopithecus sediba shares small brain size with other members of Australopithecus but also has
Assume z is a standard normal random variable. What is the value of z if the area to the right ... Assume z is a standard normal random variable. What is the value of z if the area to the right ...
In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents
Video: Prone Position

For a complete list of videos, visit our video library