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 136 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
Wow, this really help

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Model Organism Neurospora Model Organism Neurospora
Model Organism Neurospora Model Organism Neurospora
Model of the Reading Process Model of the Reading Process
Model for chromatin replication Model for chromatin replication
A model of transcription initiation as deduced from the crystal structure of TFIIB complexed A model of transcription initiation as deduced from the crystal structure of TFIIB complexed
Variable and absorption costing, explaining operating-income differences. Variable and absorption costing, explaining operating-income differences.
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library