A University Wanted to See Whether There Was a Significant

question 98

Essay

A university wanted to see whether there was a significant difference in age between its day staff and evening staff. A random sample of 35 staff members is selected from each group. The data are given below. Test the hypothesis that there is no difference in age between the two groups. Use α =0.05 .
$\begin{array} { l l l l l l l l l l l l } 22 & 24 & 24 & 23 & 19 & 19 & 23 & 22 & 18 & 21 & 21 & 18 \\18 & 25 & 29 & 24 & 23 & 22 & 22 & 21 & 20 & 20 & 20 & 27 \\17 & 19 & 18 & 21 & 20 & 23 & 26 & 30 & 25 & 21 & 25 &\end{array}$
$\begin{array} { l l l l l l l l l l l l } 18 & 23 & 25 & 23 & 21 & 21 & 23 & 24 & 27 & 31 & 24 & 20 \\20 & 23 & 19 & 25 & 24 & 27 & 23 & 20 & 20 & 21 & 25 & 24 \\23 & 28 & 20 & 19 & 23 & 24 & 20 & 27 & 21 & 29 & 30 &\end{array}$

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Definitions:

Proposal

A plan or suggestion, especially a formal or written one, put forward for consideration or discussion by others.

Closing Section

The final part of a document or communication that summarizes the content and may offer next steps or a call to action.

Business Report

A formal document that presents information and analysis to assist in decision-making within a business context.

Key Points

The most important or central ideas, facts, or pieces of information relating to a topic or discussion.