Kayla Thinks She Has Noticed a Pattern of Differences in Her

question 11

Multiple Choice

Kayla thinks she has noticed a pattern of differences in her male and female friends' video game scores and she wonders why. She notices her male friends spend more time playing and thinks that may be the reason. Which of the following is an attempt to achieve the goal of prediction?

• A)calculating her friends' average scores
• B)making the males in her study play with one hand
• C)hypothesizing scores will be equivalent if they play the same amount of time
• D)using the study results to improve female's scores

---

Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values.

T Critical Value

The value from the t-distribution that is associated with a specified level of significance for a two-tailed test.

Confidence Levels

Confidence levels are the degree of certainty or probability—expressed as a percentage—that a confidence interval contains the true parameter value.

Alternative Hypothesis

The hypothesis in a statistical test that proposes a specific difference or effect, in contrast to the null hypothesis which suggests no effect.