I the Null Hypothesis in the Goodness-Of-Fit Test Is That

question 126

Multiple Choice

i. The null hypothesis in the goodness-of-fit test is that there is no difference. ii. The alternative hypothesis states that there is a difference between the observed frequencies and the expected frequencies in a goodness-of-fit test.
iii. The number of degrees of freedom appropriate for the chi-square goodness-of-fit test is the number of categories minus 1.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

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Interstate Commerce Commission

The first federal agency created in 1887, tasked with regulating the railroads to ensure fair rates, eliminate rate discrimination, and regulate other aspects of common carriers.

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The 27th President of the United States (1909-1913) known for his conservative policies; later served as the 10th Chief Justice of the United States, making him the only person to have held both offices.

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The 26th President of the United States, known for his progressive policies, leadership of the Rough Riders, and role in negotiating the end of the Russo-Japanese War.