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

Author Question: In 2012, seventy percent of Canadian households had an internet connection. A sample of 484 ... (Read 92 times)

jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
on: Jun 24, 2018
In 2012, seventy percent of Canadian households had an internet connection. A sample of 484 households taken in 2013 showed that 75 of them had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Canadian households that have internet connections.
 a. State the null and alternative hypotheses to be tested.
  b. Compute the test statistic.
  c. The null hypothesis is to be tested at the 5 level of significance. Determine the critical value(s) for this test.
  d. What do you conclude?

Question 2

Cluster sampling tends to provide better results when the elements within the clusters are
 a. homogeneous.
 b. heterogeneous.
 c. mutually inclusive.
  d. correlated.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lolol

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. H0: p  .70
Ha: p > .70
b. Test statistic z = 2.4 (rounded)
c. z.05 = 1.645
d. Reject H0 and conclude that there has been a significant increase.

Answer to Question 2

b


jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jun 24, 2018
Thank you :)


lolol

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jun 24, 2018
Happy to help you


« 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?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

A sample flow sheet. A sample flow sheet.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
Surfing the Internet for nutrition information Surfing the Internet for nutrition information
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ... Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ...
Video: How do the different types of chromatography work? (No Audio)

For a complete list of videos, visit our video library