The Employees at the East Vancouver Office of a Multinational

question 72

Multiple Choice

The employees at the East Vancouver office of a multinational company are demanding higher salaries than those offered at the company office located in Oshawa Ontario. Their justification for the pay difference is that the difference between the average price of single-family houses in East Vancouver and that in Oshawa is more than $60,000. Before making a decision, the company management wants to study the difference in the prices of single-family houses for sale at the two locations. The results of their search of recent house sales are as follows (in $1000, rounded to the nearest thousand) :
Assuming that the population distributions are approximately normal, can we conclude at the 0.05 significance level that the difference between the two population means is greater than $60,000?
What is the value of calculated t?

• A) +1.93
• B) +3.22
• C) -2.76
• D) -2.028

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Definitions:

Greenhouse Gases

Gases in Earth's atmosphere, such as carbon dioxide, methane, and water vapor, that trap heat and contribute to global warming.

Excessive Pollution

The presence of contaminants in the environment at levels that are harmful to living organisms and natural ecosystems.

Nonrenewable

Describes resources, such as fossil fuels or minerals, that cannot be replenished within a human lifespan when consumed.

Increased Methane

Increased methane refers to the rise in concentration of methane gas in an environment, which can significantly contribute to greenhouse gas effects and global warming.