Mathematics, 26.03.2021 21:50 starfox5454
25 graduating seniors form Stellar High School are randomly selected. A mean GPA of 3.42 is calculated with a margin of error ±0.38 for a 95% confidence interval.
What is the interval estimate of the population mean?
A) 2.87 < μ <3.63
B) 3.04 < μ <3.80
C) 3.04 > μ > 3.80
D) 3.06 > μ > 3.78
Answer is B.
Answers: 2
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25 graduating seniors form Stellar High School are randomly selected. A mean GPA of 3.42 is calculat...
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