Refer to the Figure

question 1

Multiple Choice

Refer to the figure.
The figure shows the percentages of women and men age 25 to 29 who reported having masturbated at least once in the previous 90 days. What conclusion can be drawn from the information shown?

• A) Men of all ages engage in masturbation significantly more often than women of all ages, whether or not they have regular sex partners.
• B) Unpartnered women masturbate only half as often as unpartnered men.
• C) Approximately 40 percent of women with sex partners and 30 percent of women without sex partners have never masturbated.
• D) Between the ages of 25 and 29, both men and women without regular sex partners tend to masturbate more often than their counterparts who do have regular sex partners.
• E) There is little sex difference in masturbation frequency at any age.

Identify and interpret outliers.

Identify the correct use of apostrophes in singular possessive nouns.

Identify the correct use of apostrophes in plural possessive nouns.

Recognize the correct use of apostrophes in contractions.

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Definitions:

Type I Error

The mistaken dismissal of a valid null hypothesis, commonly known as a "false positive."

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true; often denoted by alpha.

Effect Size

A quantifiable measure of the magnitude of the difference between groups or the strength of a relationship in research findings.

Cohen

A surname often associated with statistical measures of effect size, such as Cohen's d for measuring the difference between two means.