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

Author Question: The price of a particular brand of jeans has a mean of 37.99 and a standard deviation of 7 . A ... (Read 111 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
on: Jun 24, 2018
The price of a particular brand of jeans has a mean of 37.99 and a standard deviation of 7 . A sample of 49 pairs of jeans is selected. Use Excel to answer the following questions:
 a. What is the probability that the sample of jeans will have a mean price less than 40?
  b. What is the probability that the sample of jeans will have a mean price between 38 and 39?
  c. What is the probability that the sample of jeans will have a mean price within 3 of the population mean?

Question 2

The standard deviation of a standard normal distribution _____.
 a. is always equal to 0
  b. is always equal to 1
  c. can be any positive value
  d. can be any value


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

skipfourms123

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .97778
=NORM.DIST(40,37.99,1,TRUE)
b. .339763
=NORM.DIST(39,37.99,1,TRUE)  NORM.DIST(38,37,99,1,TRUE)
c. .9973
=NORM.DIST(40.99,37.99,1,TRUE)  NORM.DIST(34.99,37.99,1,TRUE)

Answer to Question 2

b


Mr. Wonderful

  • Member
  • Posts: 866
Reply 2 on: Jun 24, 2018
Excellent

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

CycleBeads help women use the Standard Days Method. CycleBeads help women use the Standard Days Method.
U.S. Subsurface Coal Mining: Output, Price, and Output per Worker-Hour, 1949–1994 U.S. Subsurface Coal Mining: Output, Price, and Output per Worker-Hour, 1949–1994
Price of Computers, 1982–2010 Price of Computers, 1982–2010
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 ...
Suppose the market supply curve is p = 5Q. If price increases from 10 to 15, the change in ... Suppose the market supply curve is p = 5Q. If price increases from 10 to 15, the change in ...
Video: Buffers definition and the role of buffer in the body

For a complete list of videos, visit our video library