Author Question: Find the margin of error for a 98 confidence interval for the difference in the means of the two ... (Read 79 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
Find the margin of error for a 98 confidence interval for the difference in the means of the two populations.
 
  A) 8.50
  B) 19.86
  C) 15.77
  D) 12.58

Question 2

Which statistical technique is appropriate when we wish to analyze the relationship between two qualitative variables with two or more categories?
 
  A) The chi-square test of a multinomial experiment
  B) The chi-square test of a contingency table
  C) The t-test of the difference between two means
  D) The z test of the difference between two proportions



aadams68

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

For a complete list of videos, visit our video library