The Daily Production Rates for a Sample of Factory Workers $\begin{array}{ccc}\text { Worker }&\text { Before }&\text { After }\\1 & 6 & 9 \\2 & 10 & 12 \\3 & 9 & 10 \\4 & 8 & 11 \\5 & 7 & 9\end{array}$

question 34

Short Answer

The daily production rates for a sample of factory workers before and after a training program are shown below. Let d = After - Before.
$\begin{array}{ccc}\text { Worker }&\text { Before }&\text { After }\\1 & 6 & 9 \\2 & 10 & 12 \\3 & 9 & 10 \\4 & 8 & 11 \\5 & 7 & 9\end{array}$ We want to determine if the training program was effective.
a. Give the hypotheses for this problem.
b. Compute the test statistic.
c. At 95% confidence, test the hypotheses. That is, did the training program actually increase the production rates?

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Definitions:

Central Venous Structure

Refers to the major veins located near the heart that collect blood from the body and transport it back to the heart for reoxygenation.

Taenia Coli

Bands of longitudinal muscle fibers on the colon's surface, contributing to its segmentation and movement of contents.

Haustra

The sacculations or pouches formed by the folding of the colon's wall, allowing expansion and elongation for the process of digestion.

Villi

Small finger-like projections that line the small intestine, increasing its surface area for nutrient absorption.