In a study conducted by some Statistics students, 73 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. OA. Ho: HM-HR=0 HA: HM-HR0 OC. Ho: HM-HR <0 HA: HM-HR=0 33 Count Mean 10.88 SD 3.71 Test the hypothesis. t = -0.78 (Round to two decimal places as needed.) P= (Round to four decimal places as needed.) Rap 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. B. Ho: HM-HR = 0 HA: HM-HR>0 Mozart 20 10.15. 3.04 OD. Ho: HM-HR=0 HA: HM-HR <0 No Music 20 13.29 4.88

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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In a study conducted by some Statistics students, 73 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.
O A. Ho: HM-HR=0
HA: HM-HR0
OC. Ho: HM-HR <0
HA: HM-HR=0
33
Count
Mean 10.88
SD
3.71
Test the hypothesis.
t = -0.78 (Round to two decimal places as needed.)
P= (Round to four decimal places as needed.)
Rap
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.
B. Ho: HM-HR=0
HA: HM-HR>0
Mozart
20
10.15.
3.04
OD. Ho: HM-HR=0
HA: HM-HR <0
No Music
20
13.29
4.88
Transcribed Image Text:In a study conducted by some Statistics students, 73 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. O A. Ho: HM-HR=0 HA: HM-HR0 OC. Ho: HM-HR <0 HA: HM-HR=0 33 Count Mean 10.88 SD 3.71 Test the hypothesis. t = -0.78 (Round to two decimal places as needed.) P= (Round to four decimal places as needed.) Rap 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. B. Ho: HM-HR=0 HA: HM-HR>0 Mozart 20 10.15. 3.04 OD. Ho: HM-HR=0 HA: HM-HR <0 No Music 20 13.29 4.88
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