This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A musician plans to perform 8 selections. In how many ways can she arrange the musical selections? ... (Read 102 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Aug 1, 2018
A musician plans to perform 8 selections. In how many ways can she arrange the musical selections?
 
  A) 362,880 B) 40,320 C) 8 D) 64

Question 2

The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls' test scores is smaller than 16.1. A random sample of 22 girls results in scores with a standard deviation of 15.1.
 
  Use a significance level of 0.01 to test the teacher's claim.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bookworm410

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 1, 2018
Answer to Question 1

B

Answer to Question 2

Test statistic: X2 = 18.472. Critical value: X2 = 8.897. Fail to reject . There is not sufficient evidence to support the claim that the standard deviation of the girls' test scores is smaller than 16.1.


BRWH

  • Hero Member
  • *****
  • Posts: 553
Reply #2 on: Aug 1, 2018
Thank you!


bookworm410

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Aug 1, 2018
Always glad to help...


« previous next »
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

The Two New Strands Form in Different Ways The Two New Strands Form in Different Ways
Taking a blood pressure is one of the procedures the medical assistant extern may perform under the ... Taking a blood pressure is one of the procedures the medical assistant extern may perform under the ...
While most people resist labels of deviance, some embrace them. In what different ways do these ... While most people resist labels of deviance, some embrace them. In what different ways do these ...
Two ways of generating genetic variation in meiosis Two ways of generating genetic variation in meiosis
Use the Henderson-Hasselbalch equation to perform the following calculations. Use the Henderson-Hasselbalch equation to perform the following calculations.
Perform the indicated division (long division polynomials) Perform the indicated division (long division polynomials)
Video: Arthroscopy

For a complete list of videos, visit our video library