Imagine an Experiment Where the Mean of the Experimental Group

question 36

Multiple Choice

Imagine an experiment where the mean of the experimental group is 50 and the mean of the control group is 40. Given that the two means are obviously different, is it still possible for a researcher to say that the two groups are not significantly different?

• A) Yes, the two groups could overlap so much that the difference was not significant.
• B) Yes, if the difference was not predicted by the hypothesis.
• C) No, because the two groups are clearly far too different for the difference to not be significant.
• D) There is not enough information to answer this question.

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Definitions:

Economies of Scale

The cost advantage achieved by businesses when production becomes efficient, as the scale of operation increases leading to a reduction in average costs.

Positive Economic Profits

Earnings that exceed the total costs, including both the explicit and implicit costs of a business.

Expand

To increase the scale, scope, or size of something, often used in the context of business growth or economic expansion.

Increasing-cost Industry

An industry in which production costs increase as output expands, often due to scarce resources or rising input prices.