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in a study conducted by some Stalistics students, 64 people were randomly assign

ID: 3318702 • Letter: I

Question

in a study conducted by some Stalistics students, 64 people were randomly assigned to listen to ap music, mus by Mozart, or no music while attempling to memorize objects pictured on a pago They were then asked to list all the objects they coukd remember. The summary statistics or each group are shown in the table Complete parts a and b Count 27 23 Mean 10 14 846 13 69 SD 394 285431 a) Does i appear that it is better to study while istening to Mozart than to rap music? Test an sppropriate hypothesis and state your conckusion Lel group M correspond to Mozart isteners and group R correspond to rap lsteners Write the null and alternative hypotheses Choose the correct answer below Test the hypothesis ta(Round to two decimal places as-needed) p-|(Round to four decimal places as needed ) State your conclusion Use :0 05 - Ho There evidence that the mean number of objects remembered by those who islen so Mprart is tigher than the meson number of objects remembered by those who isten to rap music bi Now compare the group that listened to Mozart with tha group that listened to no musx Creale a 9o% between students who listen to Mozart and those who listen to na music at all Interpret your interval. e interval Sor the mean difference in memory score

Explanation / Answer

Null and alternate hypothesis are as per option A

p-value = 0.9561

Fail to reject H0. there is not sufficient evidence to conclude that the mean number of objects remembered while listening to Mozart is greater than mean number of objects remembered while listening to Rap

Part B

Interpretation of interval : Option B

Given Data Sample 1 Sample 2 Name Mozart Rap mean 8.46 10.14 Sample size 23 27 Std. dev. 2.85 3.94