Author Question: A sales manager for a company that makes commercial ovens for restaurants is interested in ... (Read 116 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
A sales manager for a company that makes commercial ovens for restaurants is interested in estimating the average number of restaurants in all metropolitan areas across the entire country. He does not have access to the data for each metropolitan location, so he had decided to select a sample that will be representative of all such areas, and will use a sample size of 30 . Do you believe that simple random sampling is the best approach to obtaining a representative subset of the metropolitan areas in the given frame? Explain. If not, recommend how the sales manager might proceed to select a better sample of size 30 from this data?

Question 2

In contrast to linear trend, an exponential trend is appropriate when the time series changes by a:
 a. constant amount each time period
  b. constant percentage each time period
  c. positive amount each time period
  d. negative amount each time period



nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

Using a simple random sample may not be the best approach. If you are trying to determine the number of restaurants in metropolitan areas, it seems as though this would be somewhat dependent on the size (population) of the metropolitan areas under investigation. It may be better to stratify the samples. You could divide the metropolitan areas into several strata based on their population and then sample within each stratum. This may be more representative of the metropolitan areas across the country.

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

For a complete list of videos, visit our video library