For Questions , Use the Following Narrative

question 7

Essay

For Questions , use the following narrative
Narrative: Liberal arts costs
A random sample of 25 liberal arts colleges in the U.S.was selected, and the average cost per student was recorded for each school.The following five-number summary was calculated for this data set: lowest = $17,554; lower quartile = $23,115; median = $26,668; upper quartile = $45,879; highest = $102,262.
-{Liberal arts costs narrative} Make a boxplot of this data set and use it to discuss the shape of the data.

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Definitions:

Normality Condition

A requirement that the distribution of sample means approximates a normal distribution, assuming the sample size is large enough, which is crucial for the application of many statistical tests.

Wilcoxon Rank

A nonparametric test that compares two paired groups to determine if their population mean ranks differ significantly.

Alternative Hypothesis

The hypothesis that proposes there is a statistically significant difference between two data sets or a deviation from the null hypothesis.

Spearman Rank

A method that non-parametrically quantifies the rank correlation to determine how well a monotonic function can depict the relationship between two variables.