Use the Traditional Method of Hypothesis Testing to Test the Given

question 123

Essay

Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations.
-The table below shows the weights of seven subjects before and after following a particular diet for two months.
$$\begin{array} { c | c c c c c c c } \text { Subject } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } & \text { F } & \text { G } \\\hline \text { Before } & 175 & 174 & 170 & 196 & 167 & 190 & 184 \\\hline \text { After } & 168 & 165 & 168 & 201 & 153 & 192 & 172\end{array}$$ Using a 0.01 level of significance, test the claim that the diet is effective in reducing weight.

---

Definitions:

Finished Product

A good that has completed the manufacturing process and is ready to be sold to customers.

Direct Labor Variance

The difference between the actual labor costs incurred and the standard or expected costs for the labor to produce a certain amount of goods.

Materials Quantity Variance

The variance between the real amount of materials utilized in manufacturing and the anticipated standard amount, times the standard unit cost.

Overhead Variance

The difference between the actual overhead costs incurred and the standard or expected overhead costs.