Author Question: The Canadian government would like to test the hypothesis that the standard deviation for the hourly ... (Read 92 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
The Canadian government would like to test the hypothesis that the standard deviation for the hourly wage for men is equal to the standard deviation for the hourly wage for women.
 
  The following data summarizes the sample statistics for hourly wages for men and women. Men WomenSample standard deviation 6.10 6.80Sample size 21 25Using  = 0.05, the conclusion for this hypothesis test would be that because the test statistic is ___________________ ______________.A) more than the critical value, we fail to reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is equal to the standard deviation for the hourly wage for women
  B) more than the critical value, we can reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women
  C) less than the critical value, we reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women
  D) less than the critical value, we fail to reject the null hypothesis and cannot conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women

Question 2

Entertainment Software Association would like to test if the median age of gamers (those that routinely play video games) is more than 30 years old. The following table summarizes the ages of a random sample of gamers.
 
  Age Number of GamersBelow 30 12Equal to 30 4More than 30 30The appropriate nonparametric procedure for this analysis is the _________________ test.A) Wilcoxon signed-rank
  B) Kruskal-Wallis
  C) Wilcoxon rank-sum
  D) sign


Carissamariew

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

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

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

For a complete list of videos, visit our video library