« 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 62 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?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

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

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s
Checklist of Developmental Skills: Birth to 5 years Checklist of Developmental Skills: Birth to 5 years
Standard precaution guidelines. Additional guidelines/protocols may be utilized depending on the ... Standard precaution guidelines. Additional guidelines/protocols may be utilized depending on the ...
Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ... Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ...
Video: Virtual Tour of the Eye Animation

For a complete list of videos, visit our video library