Author Question: Find the margin of error for a 98 confidence interval for the difference in the means of the two ... (Read 38 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?

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.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

For a complete list of videos, visit our video library