Exhibit 10-3
A statistics teacher wants to see if there is any difference in the abilities of students enrolled in statistics today and those enrolled five years ago. A sample of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information. 
-Refer to Exhibit 10-3. The point estimate for the difference between the means of the two populations is
Definitions:
Growth
An increase in the value or size of something, often used in economic contexts to refer to companies or economies.
Sales Forecast
An estimate of the amount of sales that a business expects to achieve in a future period.
Finished Goods Inventory
Finished Goods Inventory consists of all completed products that are ready for sale but have not been sold yet.
Production Units
The measurable amount of goods or services produced over a specific period of time.
Q33: Refer to Exhibit 8-6. The 95% confidence
Q34: A company attempts to evaluate the potential
Q45: For a one-tailed test (lower tail) at
Q51: Refer to Exhibit 13-6. The mean square
Q53: The average score of a sample of
Q55: Refer to Exhibit 9-2. The test statistic
Q69: Consider the following hypothesis test:<br> <span
Q106: Individuals were randomly assigned to three
Q124: Refer to Exhibit 9-1. The p-value is
Q136: Refer to Exhibit 14-2. The sample correlation