The Printout Below Refers to the Weekly Closing Stock Prices

question 131

Multiple Choice

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.

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