reshmen GPAs First-semester GPAs for a random selection of freshmen at a large university are shown. Estimate the true mean GPA of the freshman class with 90% confidence. Assume σ= 0.62. Round intermediate and final answers to two decimal places. Assume the population is normally distributed. 2.5 1.9 2.0 2.7 3.8 3.0 2.8 3.3 2.7 2.9 2.0 3.2 1.9 2.8 2.2 4.0 1.9 2.8 2.0 2.7 3.9 < μ <
reshmen GPAs First-semester GPAs for a random selection of freshmen at a large university are shown. Estimate the true mean GPA of the freshman class with 90% confidence. Assume σ= 0.62. Round intermediate and final answers to two decimal places. Assume the population is normally distributed. 2.5 1.9 2.0 2.7 3.8 3.0 2.8 3.3 2.7 2.9 2.0 3.2 1.9 2.8 2.2 4.0 1.9 2.8 2.0 2.7 3.9 < μ <
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 3CYU
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Question
Freshmen GPAs First-semester GPAs for a random selection of freshmen at a large university are shown. Estimate the true mean GPA of the freshman class with 90% confidence. Assume σ= 0.62. Round intermediate and final answers to two decimal places. Assume the population is normally distributed .
2.5
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1.9
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2.0
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2.7
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3.8
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3.0
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2.8
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3.3
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2.7
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2.9
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2.0
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3.2
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1.9
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2.8
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2.2
|
4.0
|
1.9
|
2.8
|
2.0
|
2.7
|
3.9
|
< μ <
|
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