The data are as follows student credits gpa gender program Final Exam SATM 1 42 3.00 female Business 42.5 410 2 42 3.49 male Business 77.5 440 3 45 3.72 female Business 75.0 390 4 45 3.39 male Business 70.0 550 5 100 3.39 male Arts & Sciences 92.5 560 6 43 3.36 male Arts & Sciences 72.5 600 7 69 2.83 female Business 75.0 460 8 28 2.86 male Arts & Sciences 77.5 520 9 25 3.68 male Arts & Sciences 82.5 600 10 42 1.68 female Business 52.5 540 11 45 2.89 female Business 65.0 440 12 42 3.15 male Business 45.0 550 13 69 3.18 female Business 57.5 480 14 45 3.11 male Business 42.5 590 15 37 2.32 female Arts & Sciences 47.5 440 16 45 2.86 male Business 62.5 590 Now consider the Final Exam variable. In this sample, the average final exam score is 64.8, and suppose, for now, that the population standard deviation is known to be 18. Construct a 98% confidence interval for the population mean of final exam scores, rounding your answers to two decimal points, and inputting your response in the space next to the appropriate letter. The 98% confidence interval has a lower value of The 98% confidence interval has an upper value of To guarantee a margin of error of 5 points in a 98% confidence interval, we would need a sample size of
The data are as follows student credits gpa gender program Final Exam SATM 1 42 3.00 female Business 42.5 410 2 42 3.49 male Business 77.5 440 3 45 3.72 female Business 75.0 390 4 45 3.39 male Business 70.0 550 5 100 3.39 male Arts & Sciences 92.5 560 6 43 3.36 male Arts & Sciences 72.5 600 7 69 2.83 female Business 75.0 460 8 28 2.86 male Arts & Sciences 77.5 520 9 25 3.68 male Arts & Sciences 82.5 600 10 42 1.68 female Business 52.5 540 11 45 2.89 female Business 65.0 440 12 42 3.15 male Business 45.0 550 13 69 3.18 female Business 57.5 480 14 45 3.11 male Business 42.5 590 15 37 2.32 female Arts & Sciences 47.5 440 16 45 2.86 male Business 62.5 590 Now consider the Final Exam variable. In this sample, the average final exam score is 64.8, and suppose, for now, that the population standard deviation is known to be 18. Construct a 98% confidence interval for the population mean of final exam scores, rounding your answers to two decimal points, and inputting your response in the space next to the appropriate letter. The 98% confidence interval has a lower value of The 98% confidence interval has an upper value of To guarantee a margin of error of 5 points in a 98% confidence interval, we would need a sample size of
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 22PFA
Related questions
Question
The data are as follows
student | credits | gpa | gender | program | Final Exam | SATM |
1 | 42 | 3.00 | female | Business | 42.5 | 410 |
2 | 42 | 3.49 | male | Business | 77.5 | 440 |
3 | 45 | 3.72 | female | Business | 75.0 | 390 |
4 | 45 | 3.39 | male | Business | 70.0 | 550 |
5 | 100 | 3.39 | male | Arts & Sciences | 92.5 | 560 |
6 | 43 | 3.36 | male | Arts & Sciences | 72.5 | 600 |
7 | 69 | 2.83 | female | Business | 75.0 | 460 |
8 | 28 | 2.86 | male | Arts & Sciences | 77.5 | 520 |
9 | 25 | 3.68 | male | Arts & Sciences | 82.5 | 600 |
10 | 42 | 1.68 | female | Business | 52.5 | 540 |
11 | 45 | 2.89 | female | Business | 65.0 | 440 |
12 | 42 | 3.15 | male | Business | 45.0 | 550 |
13 | 69 | 3.18 | female | Business | 57.5 | 480 |
14 | 45 | 3.11 | male | Business | 42.5 | 590 |
15 | 37 | 2.32 | female | Arts & Sciences | 47.5 | 440 |
16 | 45 | 2.86 | male | Business | 62.5 | 590 |
Now consider the Final Exam variable. In this sample, the average final exam score is 64.8, and suppose, for now, that the population standard deviation is known to be 18.
- Construct a 98% confidence interval for the population
mean of final exam scores, rounding your answers to two decimal points, and inputting your response in the space next to the appropriate letter.- The 98% confidence interval has a lower value of
- The 98% confidence interval has an upper value of
- To guarantee a margin of error of 5 points in a 98% confidence interval, we would need a
sample size of
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