I If the Null Hypothesis States That There Is No

question 16

Multiple Choice

i. If the null hypothesis states that there is no difference between the mean income of males and the mean income of females, then the test is one-tailed. ii. If we are testing for the difference between two population means, it is assumed that the sample observations from one population are independent of the sample observations from the other population.
iii. When sample sizes are less than 30, a test for the differences between two population means has n- 1 degrees of freedom.

• 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) (ii) is a correct statement but not (i) and (iii).

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Definitions:

Extension to File

An allowance by the IRS granting taxpayers additional time to file their income tax returns, beyond the April 15 deadline, without penalty for late filing.

Extension of Time

An allowance by the IRS giving taxpayers extra time to file their tax returns beyond the original due date.

Married Filing Separately

A tax filing status that allows a married individual to file their taxes separately from their spouse.

Legally Married

The status of individuals who are united in a legal marriage recognized by their jurisdiction, affecting tax filing status.