In a study conducted by some Statistics​ students, 68 people were randomly assigned to listen to rap​ music, music by​ M

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In a study conducted by some Statistics​ students, 68 people were randomly assigned to listen to rap​ music, music by​ Mozart, or no music while attempting to memorize objects pictured on a page. They were then asked to list all the objects they could remember. The summary statistics for each group are shown in the table. Complete parts a and b.
Count Mean SD Rap 28 9.94 4.49 Mozart 20 9.16 2.92 No Music 20 12.11 4.44

a) Does it appear that it is better to study whle listening to Mozart than to rap music? Test an appropriate hypothesis and state your conclusion Let group M correspond to Mozart isteners and group R correspond to rap listeners. Write the null and alternative hypotheses. Choose the correct answer below. O A HERO Hw0 OCH 0 H 0 Test the hypothesis (Round to two decimal places as needed) P. (Round to three decimal places as needed.) OBH 0 HAH 0 OD. HOWO Ha PRO State your conclusion. Ua0.06 H. There evidence that the mean number of objects remembered by those who listen to Mozart is higher than the mean number of objects remembered by those who listen to music

BOS0% confidence interval for the mean dance in memory score between students who study to Mozart and those who Tisten tono music at all. Interpret your intervai The 90% continentoval for the negative diferencen means is OD found to three decimal places as needed.) Interpret the interval. Choose the correct answer below OA Wo% confidence the mean number of objects remembered by those who listen to Moraris lower than the mean number remembered by those who listen to no music by the statue of an amount in the interval O. With 90% confidence the mean tumber objects remembered by a subject is in the interval Oc. We 0% confidence. The moon number of objects remembered by those who listen to no rust in bewer than the mean tumber verembered by those who listen to Mozart by the absolute value of an amount in the intervat