A Researcher Expects a Treatment to Produce an Increase in the Population

question 68

Multiple Choice

A researcher expects a treatment to produce an increase in the population mean.The treatment is evaluated using a one tailed hypothesis test, and the test produces z = +1.85.Based on this result, what is the correct statistical decision?

• A)The researcher should reject the null hypothesis with α = .05 but not with α = .01.
• B)The researcher should reject the null hypothesis with either α = .05 or α = .01.
• C)The researcher should fail to reject H₀ with either α = .05 or α = .01.
• D)cannot answer without additional information

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Definitions:

Payback Period

The length of time required for an investment to recover its initial cost out of the cash receipts that it generates.

Required Rate of Return

The minimum annual percentage earned by an investment that will entice individuals or companies to put money into a particular security or project.

Net Income

The profit or loss of a company after all expenses, taxes, and costs have been subtracted from total revenue.

Investment in Equipment

The total capital expenditure on physical assets like machinery and equipment intended for the production of goods or services.