In a study conducted by some Statistics students, 69 people were randomly assigned to listen to rap music, music by Moza

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In A Study Conducted By Some Statistics Students 69 People Were Randomly Assigned To Listen To Rap Music Music By Moza 1 (18.77 KiB) Viewed 29 times

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In a study conducted by some Statistics students, 69 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 Rap Count 33 Mean 10.57 SO 4,14 CITT 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 comespond to rap listeners. Write the null and alternative hypotheses. Choose the correct answer below OA H₂HM-0 OB. H₂ PHO HAHH₂0 H₂H₂O OC. M₂: Hu OD. HMM-0 H₂HPO MAHMO Test the hypothesis. to (Round to two decimal places as needed.) P= (Round to four decimal places as needed.) Mozart 19 10.01 2.97 No Music 17 14.65 4.59
Ho 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 rap music. b) Now compare the group that listened to Mozart with the group that listened to no music. Create a 90% confidence interval for the mean difference in memory score between students who listen to Mozart and those who listen to no music at all. Interpret your interval The 90% confidence interval for the negative difference in means is (Round to three decimal places as needed.) Interpret the interval. Choose the correct answer below. OA. With 90% confidence, there is no difference between the mean number of objects remembered by those who listen to Mozart and the mean number of objects remembered by those who listen to no music. OB. With 90% confidence, the mean number of objects remembered by those who listen to Mozart is lower than the mean number remembered by those who listen to no music by an amount in the interval. OC. With 90% confidence, the mean number of objects remembered by all subjects is in the interval.
H₂ 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 rap music. ip that listened to Mozart with the group that listened to no music. Create a 90% confidence interval for the mean difference in memory score between students who listen to Mozart and those all Interpret your Do not reject val for the negative difference in means is places as needed.) Reject ose the correct answer below A. With 90% confidence, there is no difference between the mean number of objects remembered by those who listen to Mozart and the mean number of objects remembered by those who listen to no music. B. With 90% confidence, the mean number of objects remembered by those who listen to Mozart is lower than the mean number remembered by those who listen to no music by an amount in the interval OG. With 90% confidence, the mean number of objects remembered by all subjects is in the interval.
He 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 rap music. b) Now compare the group Mozart with the group that listened to no music. Create a 90% confidence interval for the mean difference in memory score between students who listen to Mozart and those who listen to no music at a interval is no in a in means is The 90% confidence interv (Round to three decimal pl Interpret the interval. Choc e difference > iswer below. OA. With 90% confidence, there is no difference between the mean number of objects remembered by those who listen to Mozart and the mean number of objects remembered by those who listen to no music. B. With 90% confidence, the mean number of objects remembered by those who listen to Mozart is lower than the mean number remembered by those who listen to no music by an amount in the interval OC. With 90% confidence, the mean number of objects remembered by all subjects is in the interval