The printout below refers to the weekly closing stock prices for Air Canada on 20 randomly selected weeks in 2000.
Using a 5% level of significance, can you say that the average Air Canada stock price was different from $19.50?
A) Fail to reject the null hypothesis and conclude the mean stock price was $19.50.
B) Reject the null hypothesis and conclude the mean stock price was lower than $19.50.
C) Reject the null hypothesis and conclude the mean index was greater than $19.50.
D) Reject the null hypothesis and conclude the mean index was different from $19.50.
E) None of these statements are true

Question

The printout below refers to the weekly closing stock prices for Air Canada on 20 randomly selected weeks in 2000. 
 Using a 5% level of significance, can you say that the average Air Canada stock price was different from $19.50?
A) Fail to reject the null hypothesis and conclude the mean stock price was $19.50. 
B) Reject the null hypothesis and conclude the mean stock price was lower than $19.50. 
C) Reject the null hypothesis and conclude the mean index was greater than $19.50. 
D) Reject the null hypothesis and conclude the mean index was different from $19.50. 
E) None of these statements are true

Quizplus · Accepted Answer

The Answer of The printout below refers to the weekly closing stock prices for Air Canada on 20 randomly selected weeks in 2000. 
 Using a 5% level of significance, can you say that the average Air Canada stock price was different from $19.50?
A) Fail to reject the null hypothesis and conclude the mean stock price was $19.50. 
B) Reject the null hypothesis and conclude the mean stock price was lower than $19.50. 
C) Reject the null hypothesis and conclude the mean index was greater than $19.50. 
D) Reject the null hypothesis and conclude the mean index was different from $19.50. 
E) None of these statements are true

The Printout Below Refers to the Weekly Closing Stock Prices