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

Author Question: In estimating the difference between two population means, if a 95 percent confidence interval ... (Read 79 times)

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
on: Jun 24, 2018
In estimating the difference between two population means, if a 95 percent confidence interval includes zero, then we can conclude that there is a 95 percent chance that the difference between the two population means is zero.
 
  Indicate whether the statement is true or false

Question 2

The Cranston Hardware Company is interested in estimating the difference in the mean purchase for men customers versus women customers. It wishes to estimate this difference using a 95 percent confidence level.
 
  Assume that the variances are equal and the populations normally distributed. The following data represent independent samples from each population:Men Women16.49 17.2133.34 17.4620.18 15.6526.39 10.6728.03 14.0726.02 19.6116.08 15.9032.27 11.1721.66 24.6632.32 13.3529.79 20.8733.37 22.57Based on these data, the company can conclude that there is a statistical difference between men and women with regard to mean spending at the hardware store with men tending to spend more on average than women. Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wtf444

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

TRUE


Yi-Chen

  • Member
  • Posts: 550
Reply 2 on: Jun 24, 2018
Excellent

Laurenleakan

  • Member
  • Posts: 309
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

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.

Photoidentification and the North Atlantic humpback whale population. Photoidentification and the North Atlantic humpback whale population.
The Median Age of the U.S. Population The Median Age of the U.S. Population
Population: Historic Patterns Population: Historic Patterns
Population Indicators Population Indicators
Population size Population size
Population age 65 and over and age 85 and over, selected years 1900-2008 and projected 2010-2050. Population age 65 and over and age 85 and over, selected years 1900-2008 and projected 2010-2050.
Video: Proteins

For a complete list of videos, visit our video library