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

Author Question: The maximum value of a distribution is 18.8 and the minimum value is 7.1. Use the range rule of ... (Read 79 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
The maximum value of a distribution is 18.8 and the minimum value is 7.1. Use the range rule of thumb to find the standard deviation. Round results to the nearest tenth.
 
  A) -0.1 B) 2.9 C) 17.1 D) 7.9

Question 2

Heights of men aged 25 to 34 have a standard deviation of 2.9.
 
  Use a 0.05 significance level to test the claim that the heights of women aged 25 to 34 have a different standard deviation. The heights (in inches) of 16 randomly selected women aged 25 to 34 are listed below.
   62.13 65.09 64.18 66.72 63.09 61.15 67.50 64.65
   63.80 64.21 60.17 68.28 66.49 62.10 65.73 64.72



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katkat_flores

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

B

Answer to Question 2

Test statistic: X2 = 9.260. Critical values: X2 = 6.262, 27.488. Fail to reject . There is not sufficient evidence to support the claim that heights of women aged 25 to 34 have a standard deviation different from 2.9 in.




cdr_15

  • Member
  • Posts: 546
Reply 2 on: Aug 1, 2018
YES! Correct, THANKS for helping me on my review


nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

For a complete list of videos, visit our video library