TABLE 10-11 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 172

Multiple Choice

TABLE 10-11
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let π₁ and π₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
-Referring to Table 10-11, what is/are the critical value(s) when testing whether population proportions are different if α = 0.10?

• A) ± 1.645
• B) ± 1.96
• C) -1.96
• D) ± 2.08

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Definitions:

Coupon Rate

The coupon rate is the annual interest rate paid by a bond relative to its face value, expressed as a percentage.

Principal Amount

The initial size of a loan or bond or the amount of money invested, excluding any interest or dividends.

Coupon Rate

The interest rate stated on a bond or fixed-income security, representing the annual payout as a percentage of the bond's face value.

Interest Payments

The payments made by borrowers to lenders as a fee for using the borrowed money, typically expressed as an annual rate.