In Order to Determine Whether or Not There Is a Significant

question 8

Multiple Choice

In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry) , the following data have been accumulated. $$\begin{array} { l l l } & \text { Company A } & \text { Company B } \\\text { Sample size } & 80 & 60 \\\text { Sample mean } & \$ 16.75 & \$ 16.25 \\\text { Population standard deviation } &\$ 1.00 & \$ .95\end{array}$$ A point estimate for the difference between the two population means is

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Definitions:

Food-Washing Behaviour

A learned or instinctual behavior observed in some animal species where they wash their food in water before eating.

Observational Learning

A learning process through which behaviors are acquired by watching and imitating others, also known as modeling.

Superstitious Behaviour

Actions based on irrational beliefs that certain behaviors or rituals can influence unrelated outcomes or events.

Positive Reinforcement

A process in which presenting a positive stimulus after a desired behavior increases the likelihood of that behavior occurring again.