A Fast Food Company Uses Two Management-Training Methods $\begin{array}{lcc} & \text { Mean } & \text { Standard Deviation } \\\text { Method 1 } & 69 & 3.4 \\\text { Method 2 } & 72 & 3.8\end{array}$

question 25

Short Answer

A fast food company uses two management-training methods.Method 1 is a traditional method of training and Method 2 is a new and innovative method.The company has just hired 31 new management trainees.15 of the trainees are randomly selected and assigned to the first method,and the remaining 16 trainees are assigned to the second training method.After three months of training,the management trainees took a standardized test.The test was designed to evaluate their performance and learning from training.The sample mean score and sample standard deviation of the two methods are given below.The management wants to determine if the company should implement the new training method.
$\begin{array}{lcc} & \text { Mean } & \text { Standard Deviation } \\\text { Method 1 } & 69 & 3.4 \\\text { Method 2 } & 72 & 3.8\end{array}$
What is the absolute value of the rejection point (critical value of the test statistic)at α = .01?

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Definitions:

Reaction Range

A concept in genetics and psychology, referring to the limits within which a person’s intelligence or other traits can be shaped by the environment.

Canalization

A concept in developmental biology and psychology referring to the tendency of an organism to develop in a predetermined way, despite variations in environment or genetics.

Meiosis

A type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells, essential for sexual reproduction.

Cell Division

The process by which a parent cell divides into two or more daughter cells, essential for growth, reproduction, and repair in organisms.