THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 69

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 upper confidence limit of the 95% confidence interval for the difference between the means of the two populations.

• A)13.48
• B)18.21
• C)22.29
• D)25.83

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Definitions:

Sample Size

The number of observations or replicates included in a statistical sample, crucial for the reliability of study results.

Population Standard Error

An estimate of how much the sample mean deviates from the actual population mean.

Confidence Interval

An assortment of values, taken from statistical sampling, that is designed to contain the value of a population parameter yet to be identified.

Population Mean

The average value of a characteristic in a population, representing the central tendency of the population data.