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The admissions officer for the graduate programs at the University of Adelaide believes that the average score on an exam at his university is significantly higher than the national average of 1300. Assume that the population standard deviation is 125 and that a random sample of 25 scores had an average of 1375.
a. State the appropriate null and alternative hypotheses.
b. Calculate the value of the test statistic and set up the rejection region. What is your conclusion?
c. Calculate the p-value.
d. Does the p-value confirm the conclusion in part (b)?
Age 70
Refers to individuals who are seventy years old, marking a significant period in human lifespan with associated social, psychological, and physiological changes.
Bisexuality
A sexual orientation characterized by the romantic or sexual attraction to people of both genders.
Homosexual Attraction
The attraction, either romantic or sexual, towards people of one's own gender.
Heterosexual Attraction
A romantic or sexual interest that a person of one gender has towards a person of the opposite gender.
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