I in the Goodness-Of-Fit Test, the Chi-Square Distribution Is Used

question 57

Multiple Choice

i. In the goodness-of-fit test, the chi-square distribution is used to determine how well an observed set of observations "fits" an "expected" set of observations. ii. The sum of the expected frequencies and the sum of the observed frequencies must be equal.
iii. If the computed value of chi-square is less than the critical value, reject the null hypothesis at a predetermined level of significance.

• 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:

Depo-Provera

A contraceptive injection containing the hormone progestin, which prevents ovulation for about three months.

Retroflexion

A condition where an organ is bent backward, often referring to the uterus when it tips backwards.

Retroversion

The tilting backward of an organ or part, such as the uterus, from its normal position.

Anteflexion

The bending forward of an organ or part of the body.