Consider the Following Results for Two Samples Randomly Taken from Two

question 149

Short Answer

Consider the following results for two samples randomly taken from two populations.
$\begin{array}{lcc}&\text { Sample A }&\text { Sample B }\\\text { Sample Size } & 25 & 38 \\\text { Sample Mean } & 66 & 60 \\\text { Sample Standard Deviation } & 5 & 7\end{array}$
a. What are the degrees of freedom for the t distribution?
b. At 95% confidence, compute the margin of error.
c. Develop a 95% confidence interval for the difference between the two population means.

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Definitions:

Siblings

Brothers or sisters who share one or both parents in common.

Primary Caregiver

An individual, often a parent or family member, who takes the main responsibility for providing care and meeting the daily needs of a child or dependent adult.

Adult Siblings

Brothers and sisters who have reached adulthood, maintaining familial relationships beyond childhood.

Adult Children

Individuals who are legally adults but are considered children in relation to their parents or guardians.