Solve the Problem $\mathrm { n } = 16 , \overline { \mathrm { x } } = 84.5$

question 25

Essay

Solve the problem.
-Test the claim that for the population of history exams, the mean score is 80 . Sample data are summarized as $\mathrm { n } = 16 , \overline { \mathrm { x } } = 84.5$ , and $\mathrm { s } = 11.2$ . Use a significance level of $\alpha = 0.01$ .

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Definitions:

Rainfall

The amount of rain that falls over a specific area in a given period of time, often measured in millimeters.

Average

A statistical measure representing the central or typical value in a set of data, calculated primarily as the mean, median, or mode.

Total

It refers to the whole amount, quantity, or number of something, considered without divisions or exceptions.

Relative Frequency

The ratio of the number of times a particular event occurs to the total number of trials or instances.