Use the Traditional Method to Test the Given Hypothesis

question 22

Essay

Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
-The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls' test scores is smaller than 16.1. A random sample of 22 girls results in scores with a standard deviation of 14.3. Use a significance level of 0.01 to test the teacher's claim.

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Definitions:

Fixed-Coefficient Technology

A production process where input ratios are constant and cannot be substituted for one another in the production process.

Demand Function

A mathematical relationship that describes how the quantity demanded of a good or service varies with changes in its price, and possibly other factors.

Horizontal Labor Supply Curve

A graphical representation suggesting that a worker's willingness to work does not change regardless of wage increases over a certain range.

Monopolist

A single seller in a market who has significant control over the price and supply of a product or service.