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 less than $18.00?

A) Since the P-value is more than the selected alpha, there is insufficient evidence to reject the null hypothesis and conclude the mean stock price was at least $18.00
B) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean stock price was lower than $18.00.
C) Since the P-value is more than the selected alpha, reject the null hypothesis and conclude the mean index was less than $18.00.
D) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean index was different from $18.00.
E) Since the confidence interval doesn't contain the value $18.00, reject the null hypothesis and conclude that the mean stock price is different than $18.00.

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 less than $18.00?

A) Since the P-value is more than the selected alpha, there is insufficient evidence to reject the null hypothesis and conclude the mean stock price was at least $18.00 
B) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean stock price was lower than $18.00. 
C) Since the P-value is more than the selected alpha, reject the null hypothesis and conclude the mean index was less than $18.00. 
D) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean index was different from $18.00. 
E) Since the confidence interval doesn't contain the value $18.00, reject the null hypothesis and conclude that the mean stock price is different than $18.00.

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 less than $18.00?

A) Since the P-value is more than the selected alpha, there is insufficient evidence to reject the null hypothesis and conclude the mean stock price was at least $18.00 
B) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean stock price was lower than $18.00. 
C) Since the P-value is more than the selected alpha, reject the null hypothesis and conclude the mean index was less than $18.00. 
D) Since the P-value is less than the selected alpha, reject the null hypothesis and conclude the mean index was different from $18.00. 
E) Since the confidence interval doesn't contain the value $18.00, reject the null hypothesis and conclude that the mean stock price is different than $18.00.

The Printout Below Refers to the Weekly Closing Stock Prices