Information Regarding the ACT Scores of Samples of Students in Four

question 118

Essay

Information regarding the ACT scores of samples of students in four different majors is given below.
$$\begin{array} { c c c c } &&\text { Majors }&\\&\text { Management } & \text { Marketing } & \text { Finance } & \text { Accounting } \\&29 & 22 & 29 & 28 \\&27 & 22 & 27 & 26 \\&21 & 25 & 27 & 25 \\&28 & 26 & 28 & 20 \\&22 & 27 & 24 & 21 \\&28 & 20 & 20 & 19 \\&28 & 23 & 20 & 27 \\&23 & 25 & 30 & 24 \\&28 & 27 & 29 & 21 \\&24 & 28 & & 23 \\&29 & & & 27 \\&31 & & & 27 \\&& & & 24 \\\\\text { Sums}&318 & 245 & 234 & 312 \\\text { Means}&26.50 & 24.50 & 26.00 & 24.00 \\\text { Variances }&10.09 & 6.94 & 14.50 & 9.00\end{array}$$
a. Set up the ANOVA table for this problem.
b. At 95% confidence test to determine whether there is a significant difference in the means of the three populations.

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Definitions:

Customer Demand

The desire and willingness of consumers to purchase goods and services at given prices.

Inventory Turnover

A ratio that measures how often a company sells and replaces its stock of goods within a certain period, indicating efficiency in inventory management.

Average Inventory

The average value of a company's inventory over a specific period, calculated by adding the beginning and ending inventory and dividing by two.

Ending Inventory

The total value of goods available for sale at the end of an accounting period, calculated before the next period's beginning.