Chapter 12 Q8 See attachment

In a study conducted by some Statistics students, 65 people were randomly assigned to listen to rap music, music by Mozart, or no music while attempting to memorize objects pictured on a Rap Mozart No Music page. They were then asked to list all the objects they could remember. The summary statistics Count 27 24 14 for each group are shown in the table. Complete parts a and b. Mean 10.36 8.19 13.75 SD 4.01 3.13 5.17 a) Does it appear that it is better to study while listening to Mozart than to rap music? Test an appropriate hypothesis and state your conclusion. Let group M correspond to Mozart listeners and group R correspond to rap listeners. Write the null and alternative hypotheses. Choose the correct answer below. O A. Ho: HM - HR=0 O B. Ho: HM - HR=0 HA: HM - HR>0 HA: HM - HR