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=.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 u1 be the mean before practicing and ud=u1-u2 Student A B C D E F Before 8, 9, 14, 4, 7, 2 After 7, 5, 11, 3, 2, 3 1. State the hypotheses and identify the claim H0: H1: Is this test one tailed or two tailed? 2. Find the critical value(s) (with n=6 first calculate the correct range of freedom) critical value(s) = 3. Compute the test value= t= 4. Do not reject or Reject the null hypothesis 5. Is there enough evidence to support the claim Please answer all parts of each question 1-5 and be sure the degree of freedom calculation is correct before calculating 2 and 3. Thanks in advance for the help.
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=.01, can it be concluded that there was a decrease in the
Student A B C D E F
Before 8, 9, 14, 4, 7, 2
After 7, 5, 11, 3, 2, 3
1. State the hypotheses and identify the claim
H0:
H1:
Is this test one tailed or two tailed?
2. Find the critical value(s) (with n=6 first calculate the correct
critical value(s) =
3. Compute the test value=
t=
4. Do not reject or Reject the null hypothesis
5. Is there enough evidence to support the claim
Please answer all parts of each question 1-5 and be sure the degree of freedom calculation is correct before calculating 2 and 3. Thanks in advance for the help.
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