Construct a Confidence Interval for µD, the Mean of the Differences

question 92

Multiple Choice

Construct a confidence interval for µd, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributed.
-If $\mathrm { d } = 3.125 , \mathrm {~S} _ { \mathrm { d } } = 2.911$ , and $\mathrm { n } = 8$ , determine a 99 percent confidence interval for $\mu _ { \mathrm { d } }$ .

• A) \(- 0.476 < \mu _ { \mathrm { d } } < 6.726\)
• B) \(1.851 < \mu _ { \mathrm { d } } < 6.726\)
• C) \(1.851 < \mu _ { \mathrm { d } } < 4.399\)
• D) \(- 0.476 < \mu _ { \mathrm { d } } < 4.399\)

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