Use the Following to Answer Questions

question 31

Multiple Choice

Use the following to answer questions :
A sample of 76 female workers and another sample of 48 male workers from a state produced mean weekly earnings of $743.50 for the females and $777.63 for the males.Suppose that the standard deviations of the weekly earnings are $80.05 for the females and $88.68 for the males.The null hypothesis is that the mean weekly earnings are the same for females and males,while the alternative hypothesis is that the mean weekly earnings for females is less than the mean weekly earnings for males.
-The significance level for the test is 1%.What is the critical value of z?

• A)-2.58
• B)-1.96
• C)-2.33
• D)-2.17

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Definitions:

Coupon Bond

A type of bond that pays the holder a fixed interest rate (coupon) over its lifetime, and the principal is repaid at maturity.

Interest-Rate Risk

The potential for investment losses due to fluctuations in interest rates.

Yield To Maturity

The total return anticipated on a bond if held until its maturity date, taking into account its current market price, par value, coupon interest rate, and time to maturity.

Coupon Bond

A type of bond that pays the holder interest payments at fixed intervals until maturity, when the principal is repaid.