A Researcher Wants to Conduct a Before/after Study on 11

question 13

Multiple Choice

A researcher wants to conduct a before/after study on 11 subjects to determine if a new cholesterol medication results in higher HDL cholesterol readings.The null hypothesis is that the average difference is zero while the alternative hypothesis is that the average difference is not zero.Scores are obtained on the subjects both before and after taking the medication.After subtracting the after scores from the before scores, the average difference is computed to be -2.40 with a sample standard deviation of 1.21.Assume that the differences are normally distributed in the population.The degrees of freedom for this test are _______.

• A)11
• B)10
• C)9
• D)20
• E)2

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Definitions:

PSAB Standards

The Public Sector Accounting Board (PSAB) standards are guidelines for financial accounting and reporting in the public sector in Canada.

Canadian Governmental Reporting Standards

Standards and guidelines for financial reporting specifically designed for the public sector in Canada.

OSC

The Ontario Securities Commission, a regulatory agency in Ontario, Canada that oversees the capital markets in the province.

CICA Handbook

The official manual for accounting practices in Canada, issued by the Canadian Institute of Chartered Accountants, serving as a reference for accountants on standards and regulations.