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 66 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
Great answer, keep it coming :)

parker125

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Using Parallax to Determine Distance Using Parallax to Determine Distance
Sample Exercise Program for Healthy Older Adults (cont.) Sample Exercise Program for Healthy Older Adults (cont.)
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Sample prescriptions of drugs for oral fungal infections. Sample prescriptions of drugs for oral fungal infections.
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 ...
A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL
Video: Dissociative Disorders (Part 2)

For a complete list of videos, visit our video library