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

Author Question: A sales representative has 600 accounts. He wants to take a random sample to determine the mean ... (Read 23 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
on: Jun 24, 2018
A sales representative has 600 accounts. He wants to take a random sample to determine the mean amount of yearly sales for these accounts. From past research, he knows that the population standard deviation is approximately 28,000.
 
  How large a sample should he take in order to estimate the population mean within 8,000 at a 98 level of confidence?A) 60
  B) 45
  C) 75
  D) 30

Question 2

If a categorical independent variable, such as gender, contains exactly two categories, then how many dummy variable(s) will be needed to uniquely represent these categories?
 
  A) 1
  B) 2
  C) 3
  D) 4


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Cheesycrackers

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

A


cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jun 24, 2018
Gracias!

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

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

Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
The WISC-IV: Sample Items The WISC-IV: Sample Items
Sample purchase order form. Sample purchase order form.
Example of a chart of accounts. Example of a chart of accounts.
Gas molecules have no bonds to other molecules and move in random motion. Gas molecules have no bonds to other molecules and move in random motion.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library