In a study conducted by some Statistics students, 71 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. Mozart No Music 17 Rap 31 11.61 4.48 Count 23 8.04 3.32 Mean 13,92 4.84 SD 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 altemative hypotheses. Choose the correct answer below. OA Hi Hu-HR =0 HA HM- HR #0 OB. Ho HM HR=0 Ha: HM- HR <0 OC. Hg Hu- HR<0 H HM- PR=0 D. Ho HM- HR=0 HA HM -HR>0 Test the hypothesis. t= -3.36 (Round to two decimal places as needed.) (Round to four decimal places as needed.) P=

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In a study conducted by some Statistics students, 71 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.
Mozart
23
8.04
3.32
Rap
31
No Music
17
Count
Mean
11.61
13,92
SD
4.48
4.84
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 altemative hypotheses. Choose the correct answer below.
OA Hgi Hu-HR = 0
HAi HM- HR #0
OB. Ho HM HR=0
HA HM - HR <0
D. Hoi HM- HR=0
HA: HM - HR >0
OC. Hgi Hu- HR<0
H HM- PR=0
Test the hypothesis.
t= -3.36 (Round to two decimal places as needed.)
P=
(Round to four decimal places as needed.)
Transcribed Image Text:In a study conducted by some Statistics students, 71 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. Mozart 23 8.04 3.32 Rap 31 No Music 17 Count Mean 11.61 13,92 SD 4.48 4.84 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 altemative hypotheses. Choose the correct answer below. OA Hgi Hu-HR = 0 HAi HM- HR #0 OB. Ho HM HR=0 HA HM - HR <0 D. Hoi HM- HR=0 HA: HM - HR >0 OC. Hgi Hu- HR<0 H HM- PR=0 Test the hypothesis. t= -3.36 (Round to two decimal places as needed.) P= (Round to four decimal places as needed.)
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