In Testing the Difference Between Two Population Means, Using Two $\bar { X } _ { 1 } - \bar { X } _ { 2 }$

question 66

Multiple Choice

In testing the difference between two population means, using two independent samples, we use the pooled variance in estimating the standard error of the sampling distribution of the sample mean difference $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ if the:

• A)sample sizes are both large.
• B)populations are normally distributed.
• C)populations have equal variances.
• D)populations are normal with equal variances.

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Maturity Value

The total amount that will be paid to an investor at the end of a bond's term or the face value plus any interest.

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