« 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 11 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?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

A levallois core from Kapedo Tuffs, Kenya dates about 130,000 years ago. A levallois core from Kapedo Tuffs, Kenya dates about 130,000 years ago.
Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19 Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
How to sketch a quadratic equation that is in standard form (Question 1) How to sketch a quadratic equation that is in standard form (Question 1)
Climate change occurs over millions of years Climate change occurs over millions of years
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
What amount was invested 35 years ago at 7% compounded semiannually if the value of the ... What amount was invested 35 years ago at 7% compounded semiannually if the value of the ...
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library