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First semester GPA for a random selection of freshman at a large university are shown. Estimate the true mean GPA of the freshman class with 99% confidence. Assume population standard deviation equals 0.62. 1.9, 3.2, 2.0, 2.9, 2.7, 3.3, 2.8, 3.0, 3.8, 2.7, 2.0, 1.9, 2.5, 2.7, 2.8, 3.2, 3.0, 3.8, 3.1, 2.7, 3.5, 3.8, 3.9, 2.7, 2.0, 2.8, 1.9, 4.0, 2.2, 2.8, 2.1, 2.4, 3.0, 3.4, 2.9, 2.

First semester GPA for a random selection of freshman at a large university are shown. Estimate the true mean GPA of the freshman class with 99% confidence. Assume population standard deviation equals 0.62. 1.9, 3.2, 2.0, 2.9, 2.7, 3.3, 2.8, 3.0, 3.8, 2.7, 2.0, 1.9, 2.5, 2.7, 2.8, 3.2, 3.0, 3.8, 3.1, 2.7, 3.5, 3.8, 3.9, 2.7, 2.0, 2.8, 1.9, 4.0, 2.2, 2.8, 2.1, 2.4, 3.0, 3.4, 2.9, 2.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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First semester GPA for a random selection of freshman at a large university are shown. Estimate the true mean GPA of the freshman class with 99% confidence. Assume population standard deviation equals 0.62. 1.9, 3.2, 2.0, 2.9, 2.7, 3.3, 2.8, 3.0, 3.8, 2.7, 2.0, 1.9, 2.5, 2.7, 2.8, 3.2, 3.0, 3.8, 3.1, 2.7, 3.5, 3.8, 3.9, 2.7, 2.0, 2.8, 1.9, 4.0, 2.2, 2.8, 2.1, 2.4, 3.0, 3.4, 2.9, 2.1
d. Which is smaller? Explain why. 13. Number of Faculty The numbers of faculty at 32 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enrollment under 12,000 with 92% confidence. Assume o = =165.1. 211 384 396 211 224 337 395 121 356 621 367 408 515 280 289 180 431 176 318 836 203 374 224 121 412 134 539 471 638 425 159 324 Source: World Almanac. 4. 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 99% confidence. Assume o = 0.62. 3.3 3.2 2.0 2.9 2.7 1.9 2.7 2.8 3.0 3.8 2.0 1.9 3.0 3.8 2.7 3.2 2.7 2.8 3.5 2.5 3.1 2.7 3.8 3.9 2.8 1.9 4.0 2.2 2.8 2.0 2.1 2.4 3.0 3.4 2.9 2.1 The num.
Transcribed Image Text:d. Which is smaller? Explain why. 13. Number of Faculty The numbers of faculty at 32 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enrollment under 12,000 with 92% confidence. Assume o = =165.1. 211 384 396 211 224 337 395 121 356 621 367 408 515 280 289 180 431 176 318 836 203 374 224 121 412 134 539 471 638 425 159 324 Source: World Almanac. 4. 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 99% confidence. Assume o = 0.62. 3.3 3.2 2.0 2.9 2.7 1.9 2.7 2.8 3.0 3.8 2.0 1.9 3.0 3.8 2.7 3.2 2.7 2.8 3.5 2.5 3.1 2.7 3.8 3.9 2.8 1.9 4.0 2.2 2.8 2.0 2.1 2.4 3.0 3.4 2.9 2.1 The num.
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