A Student Believes That No More Than 20% (I

question 54

Essay

A student believes that no more than 20% (i.e., 20%) of the students who finish a statistics course get an A.A random sample of 100 students was taken.Twenty-four percent of the students in the sample received 'A's.
a.
State the null and alternative hypotheses.
b.
Using the critical value approach, test the hypotheses at the 1% level of significance.
c.
Using the p-value approach, test the hypotheses at the 1% level of significance.

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Definitions:

Homeostasis

The process by which living organisms maintain a stable internal environment despite changes in external conditions, vital for the regulation of body functions.

Positive Feedback

A biological process where the product of a reaction leads to an increase in that reaction, amplifying the response.

Pleural Cavity

The slim space between the pleura of the lungs and the internal chest wall, containing pleural fluid to reduce friction during breathing.