The Correlation Between Hours Sleep and Quiz Score of the 60

question 16

Multiple Choice

The correlation between Hours Sleep and Quiz score of the 60 students in your statistics class is r = -0.34.Which of these possible conclusions is justified:

• A)The more you sleep, the better your quiz score will be.
• B)The form of the relationship between Hours Sleep and Quiz score is moderately straight.
• C)There are several outliers that explain the low correlation.
• D)If we measure Sleep in minutes rather than hours, the correlation will increase.
• E)There exists a moderately stong, negative association between Gours Sleep and Quiz score.

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Definitions:

Sample Standard Deviations

A measure that quantifies the amount of variation or dispersion of a set of sample data values.

Margin Of Error

An estimate of the amount by which a sample statistic differs from a population parameter, expressed often as a confidence interval.

Equal Sample Sizes

A condition in statistical analysis where the number of data points or observations in each group or category being compared is the same.

Population Variances

A measure of the dispersion or spread of data points in a population, indicating how much the data varies from the mean of the population.