The Following Is a Bar Chart Summarizing Consumer Preferences for Various

question 19

Multiple Choice

The following is a bar chart summarizing consumer preferences for various brands of digital
Cameras.
This bar chart shows

• A)the marginal distribution of brands.
• B)the conditional distribution of brands.
• C)the contingency distribution of brands.
• D)the distribution for a quantitative variable.
• E)none of the above.

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Definitions:

Alpha

A predetermined threshold in hypothesis testing that defines the probability of making a Type I Error, usually set at 0.05, indicating a 5% risk of false positive.

Null Hypothesis

A hypothesis that suggests there is no significant difference or effect, serving as a default position until evidence suggests otherwise.

Statistical Significance

A determination that a relationship between variables or a difference between groups is likely not due to chance, based on a predetermined threshold.

Reject

In the context of statistical hypothesis testing, to conclude that the evidence is sufficiently strong to discard the null hypothesis.