x1 7.8 11.5 9.7 11.2 6.6 9.5 10.5 12.6 11 8.7 14 x2 7.7 6. 8.9 4.9 9.7 11.4 6.8 2.8 6.6 7.2 5.9 8.7 12.3 9.6 Use the sample data shown above to decide whether u1 is different than u2 at a = 0.01. Make sure you are looking at ALL the data. 1. The population distribution requirement for this test is: O Need a normally distributed population since n1 and n2 < 30 O None since this is a Z-test O None since n and n2 > 30 O Need a normally distributed population since this is a T-test The hypotheses are: O Ho: µ1 > µ2; Ha: µ1 < µ2 O Ho: µ1 = µ2; Ha: µ1 # µ2 %3D O Ho:p1 = P2; Ha:p1 p2 O Ho: µ1 < µ2; Ha:µ1 > µ2 О Но: р < р2; На:pі > Р2 O Ho:p1 > P2; Ha:p1 < P2 2. This is a O rightO twoO left tailed test and the distribution used is OT since both o values are not known OZ since both o values are known OZ since testing two proportions

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A Grades for Ivan Zepeda: 40231 X
* HW 10.1,10.2
+
instructure.com/courses/2177802/assignments/13744575
eA Maps
Question 20
х1
7.8
11.5
9.7
11.2
6.6
9.5
10.5
12.6
11
8.7
14
x2
7.7
6
8.9
4.9
9.7
11.4
6.8
2.8
6.6
7.2
5.9
8.7
9
12.3
9.6
Use the sample data shown above to decide whether u1 is different than µ2 at a = 0.01.
Make sure you are looking at ALL the data.
1. The population distribution requirement for this test is:
O Need a normally distributed population since n and n2 < 30
O None since this is a Z-test
O None since nį and n2 > 30
O Need a normally distributed population since this is a T-test
The hypotheses are:
O Ho:µ1 > µ2; Ha: µ1 < µ2
Ho:µi = µ2; Ha:µ1 # µ2
O Ho:p1 = p2; Ha:p1 p2
O Ho:µ1 < µ2; Ha:µ1 > µ2
O Ho:p1 < P2; Ha:p1 > P2
O Ho:p1 > P2; Ha:p1 < P2
2. This is a O rightO twoO left tailed test and the distribution used is
OT since both o values are not known
O Z since both o values are known
OZ since testing two proportions
The Degrees of Freedom (use the simple estimate discussed in the notes, not the messy formula) are
MacBook Pro
Transcribed Image Text:A Grades for Ivan Zepeda: 40231 X * HW 10.1,10.2 + instructure.com/courses/2177802/assignments/13744575 eA Maps Question 20 х1 7.8 11.5 9.7 11.2 6.6 9.5 10.5 12.6 11 8.7 14 x2 7.7 6 8.9 4.9 9.7 11.4 6.8 2.8 6.6 7.2 5.9 8.7 9 12.3 9.6 Use the sample data shown above to decide whether u1 is different than µ2 at a = 0.01. Make sure you are looking at ALL the data. 1. The population distribution requirement for this test is: O Need a normally distributed population since n and n2 < 30 O None since this is a Z-test O None since nį and n2 > 30 O Need a normally distributed population since this is a T-test The hypotheses are: O Ho:µ1 > µ2; Ha: µ1 < µ2 Ho:µi = µ2; Ha:µ1 # µ2 O Ho:p1 = p2; Ha:p1 p2 O Ho:µ1 < µ2; Ha:µ1 > µ2 O Ho:p1 < P2; Ha:p1 > P2 O Ho:p1 > P2; Ha:p1 < P2 2. This is a O rightO twoO left tailed test and the distribution used is OT since both o values are not known O Z since both o values are known OZ since testing two proportions The Degrees of Freedom (use the simple estimate discussed in the notes, not the messy formula) are MacBook Pro
A Grades for Ivan Zepeda: 40231 X
A HW 10.1,10.2
+
e.instructure.com/courses/2177802/assignments/13744575
AMaps
The Degrees of Freedom (use the simple estimate discussed in the notes, not the messy formula) are
O11
O 10
ON/A; this is a Z-test
3. The STS (round to 3 decimals) is:
The P-value (round to 4 decimals) is:
4. The decision at a = 0.01 is:
O Do not reject Ho since P < a
O Do not reject Ho since P > a
O Reject Ho since P > a
O Reject Ho since P < a
The conclusion is:
O There is sufficient evidence to conclude that ui is not different than u2
O There is sufficient evidence to conclude that ui is different than u2
O There is insufficient evidence to conclude that u is not different than u2
O There is insufficient evidence to conclude tha is different than u2
Submit Question
MacBook Pro
Transcribed Image Text:A Grades for Ivan Zepeda: 40231 X A HW 10.1,10.2 + e.instructure.com/courses/2177802/assignments/13744575 AMaps The Degrees of Freedom (use the simple estimate discussed in the notes, not the messy formula) are O11 O 10 ON/A; this is a Z-test 3. The STS (round to 3 decimals) is: The P-value (round to 4 decimals) is: 4. The decision at a = 0.01 is: O Do not reject Ho since P < a O Do not reject Ho since P > a O Reject Ho since P > a O Reject Ho since P < a The conclusion is: O There is sufficient evidence to conclude that ui is not different than u2 O There is sufficient evidence to conclude that ui is different than u2 O There is insufficient evidence to conclude that u is not different than u2 O There is insufficient evidence to conclude tha is different than u2 Submit Question MacBook Pro
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