THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 93

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Two dependent random samples from two normally distributed populations gives the following results:
n = 10;
= 20.5;s_d = 3.2
-Find the margin of error for a 95% confidence interval for the difference between the means of the two populations.

• A)2.29
• B)5.86
• C)3.44
• D)8.10

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Definitions:

Point Estimate

A single value that serves as the best guess or best estimate of a population parameter based on sample data.

Point Estimate

A single value given as the best guess or estimate representing a population parameter, based on sample data.

Proportion

A part, share, or number considered in comparative relation to a whole; a statistical measure often used to describe a characteristic of a sample.

Variability

The extent to which data points in a statistical distribution or dataset differ from the average or mean value.