Mistakes in a Song A random sample of six music students played a short song, and the number of mistakes in music each student made was recorded. After they practiced the song 5 times, the number of mistakes each student made was recorded. The data are shown. At a = 0.01, can it be concluded that there was a decrease in the mean number of mistakes? Assume that all variables are normally or approximately normally distributed. Let u, be the mean before and Un= H,-,. Student C D E Before 13 10 11 14 13 After 3. 13 10 8. 12 12
Mistakes in a Song A random sample of six music students played a short song, and the number of mistakes in music each student made was recorded. After they practiced the song 5 times, the number of mistakes each student made was recorded. The data are shown. At a = 0.01, can it be concluded that there was a decrease in the mean number of mistakes? Assume that all variables are normally or approximately normally distributed. Let u, be the mean before and Un= H,-,. Student C D E Before 13 10 11 14 13 After 3. 13 10 8. 12 12
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 6SGR
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Find the p-value
![9.3 Section Exercs8
Mistakes in a Song A random sample of six music students played a short song, and the number of mistakes in music each student made
was recorded. After they practiced the song 5 times, the number of mistakes each student made was recorded. The data are shown. At
a=0.01, can it be concluded that there was a decrease in the mean number of mistakes? Assume that all variables are normally or
approximately normally distributed. Let µ, be the mean before and Un = µ, -µ,.
Student
A
C
D
E
F
Before
13
10
11
14
13
After
12
3 13
10
8
12
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II](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb40466dc-71f5-4c12-ada3-d1497eb798ae%2F7f5e9ea4-7089-4e55-bad0-5a3248765181%2Fhmojxd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9.3 Section Exercs8
Mistakes in a Song A random sample of six music students played a short song, and the number of mistakes in music each student made
was recorded. After they practiced the song 5 times, the number of mistakes each student made was recorded. The data are shown. At
a=0.01, can it be concluded that there was a decrease in the mean number of mistakes? Assume that all variables are normally or
approximately normally distributed. Let µ, be the mean before and Un = µ, -µ,.
Student
A
C
D
E
F
Before
13
10
11
14
13
After
12
3 13
10
8
12
Send data to Excel
Save For Later
Submit Assignment
Skip Part
Check Answer
II
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