Suppose your statistics instructor gave six examinations during the semester. You received the following exam scores (percent correct): 80, 77, 82, 83, 94, and 76. The instructor decided to randomly select two exam scores, compute their mean, and use this score to determine your final course grade. a. Compute the population mean. This is your average grade based on all of your grades. (Round your answer to 2 decimal places.) Population mean b. Compute the population standard deviation (Round your answer to 2 decimal places.) Population standard deviation c. How many different scores could be calculated if your instructor decided to random sample two of your exam scores? Number of different samples
Suppose your statistics instructor gave six examinations during the semester. You received the following exam scores (percent correct): 80, 77, 82, 83, 94, and 76. The instructor decided to randomly select two exam scores, compute their mean, and use this score to determine your final course grade. a. Compute the population mean. This is your average grade based on all of your grades. (Round your answer to 2 decimal places.) Population mean b. Compute the population standard deviation (Round your answer to 2 decimal places.) Population standard deviation c. How many different scores could be calculated if your instructor decided to random sample two of your exam scores? Number of different samples
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 25PFA
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d. List all possible samples of size 2 and compute the mean of each. (Round your mean answers to 1 decimal place.)
Sample
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Values
Sum
Mean
e. Compute the mean of the sample means and the standard error of the sample means. (Round your answers to 2 decimal places.)
Mean of the sample means
Standard error of the sample means](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F106af7ee-e5e1-4cbf-9b60-7937ba74df37%2F3e8bd1ae-3d72-4a19-b359-2b4e8287f0a5%2Fi386pre_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2
d. List all possible samples of size 2 and compute the mean of each. (Round your mean answers to 1 decimal place.)
Sample
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Values
Sum
Mean
e. Compute the mean of the sample means and the standard error of the sample means. (Round your answers to 2 decimal places.)
Mean of the sample means
Standard error of the sample means
![Suppose your statistics instructor gave six examinations during the semester. You received the following exam scores (percent
correct): 80, 77, 82, 83, 94, and 76. The instructor decided to randomly select two exam scores, compute their mean, and use this
score to determine your final course grade.
a. Compute the population mean. This is your average grade based on all of your grades. (Round your answer to 2 decimal places.)
Population mean
b. Compute the population standard deviation (Round your answer to 2 decimal places.)
Population standard deviation
c. How many different scores could be calculated if your instructor decided to random sample two of your exam scores?
Number of different samples](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F106af7ee-e5e1-4cbf-9b60-7937ba74df37%2F3e8bd1ae-3d72-4a19-b359-2b4e8287f0a5%2Fl9wtehh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Suppose your statistics instructor gave six examinations during the semester. You received the following exam scores (percent
correct): 80, 77, 82, 83, 94, and 76. The instructor decided to randomly select two exam scores, compute their mean, and use this
score to determine your final course grade.
a. Compute the population mean. This is your average grade based on all of your grades. (Round your answer to 2 decimal places.)
Population mean
b. Compute the population standard deviation (Round your answer to 2 decimal places.)
Population standard deviation
c. How many different scores could be calculated if your instructor decided to random sample two of your exam scores?
Number of different samples
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