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...

Find the p-value

Extracted 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