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

Author Question: An auto manufacturer wants to estimate the annual income of owners of a particular model of ... (Read 87 times)

lilldybug07

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
An auto manufacturer wants to estimate the annual income of owners of a particular model of automobile. A random sample of 200 current owners is selected. The population standard deviation is known. Which Excel function would NOT be appropriate to use to construct a confidence interval estimate?
 a. NORM.S.INV
  b. COUNTIF
  c. AVERAGE
  d. STDEV

Question 2

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles. What percentage of tires will have a life of 34,000 to 46,000 miles?
 a. 38.49
  b. 76.98
  c. 50
  d. None of the answers is correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Brenm

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

b


lilldybug07

  • Member
  • Posts: 546
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

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?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Model Organism Neurospora Model Organism Neurospora
Axon terminal model Axon terminal model
Global Stratification: Income of the World's Nations Global Stratification: Income of the World's Nations
The Murphy–Moller wellness model. The Murphy–Moller wellness model.
Genomic and fossil evidence has been used to estimate the times of divergence of human and Neanderth Genomic and fossil evidence has been used to estimate the times of divergence of human and Neanderth
Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ... Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ...
Video: Polysaccharides

For a complete list of videos, visit our video library