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A professor was curious about her students' grade point averages (GPAs). She took a random sample ...
asprague24
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A professor was curious about her students' grade point averages (GPAs). She took a random sample ...
A professor was curious about her students' grade point averages (GPAs). She took a random sample of 15 students and found a mean GPA of 3.01 with a standard deviation of 0.534. Which of the following formulas gives a 99% confidence interval for the mean GPA of the professor's students?
▸ 3.01 ± 2.576
▸ 3.01 ± 2.977
▸ 3.01 ± 2.947
▸ 3.01 ± 2.977
▸ 3.01 ± 2.947
Textbook
Stats: Modeling the World
Edition:
4
^{th}
Authors:
Bock, Velleman, De Veaux
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3.01 ± 2.977
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