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The Printout Below Refers to the Weekly Closing Stock Prices

question 42

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?
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.


Definitions:

Work Opportunity Act

Legislation aimed at increasing job opportunities for certain groups of people, including the long-term unemployed, veterans, and recipients of certain types of public assistance.

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The segment of a population that ranks at the bottom 20% in terms of income.

Richest Fifth

The segment of a population that represents the top 20% in terms of wealth or income distribution.

Nicholas Lemann

An American journalist and author recognized for his work on issues of racism, social inequality, and the history of American education.

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