What do you make of Mitt? Twenty-nine college stu- dents, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustwor- chy the face of Mitt Romney appeared, as represented in heir mental image of Mitt Romney's face. Ratings were on a scale of O to 7, with O being “not at all trustworthy" nd 7 being "extremely trustworthy." Here are the 9 ratings:19 n MITT 2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7 O Suppose we can consider this an SRS of all U.S. col- lege students. Make a stemplot. Is there any sign of major deviation from Normality? -Give a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?
What do you make of Mitt? Twenty-nine college stu- dents, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustwor- chy the face of Mitt Romney appeared, as represented in heir mental image of Mitt Romney's face. Ratings were on a scale of O to 7, with O being “not at all trustworthy" nd 7 being "extremely trustworthy." Here are the 9 ratings:19 n MITT 2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7 O Suppose we can consider this an SRS of all U.S. col- lege students. Make a stemplot. Is there any sign of major deviation from Normality? -Give a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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please include the confidence interval and the P-value for each problem and which hypothesis to accept.and please use the calculator method not the book or excell ti 83 or 84
![20.30 What do you make of Mitt? Twenty-nine college stu-
dents, identified as having a positive attitude about Mitt
Romney as compared to Barack Obama in the 2012
presidential election, were asked to rate how trustwor-
thy the face of Mitt Romney appeared, as represented in
their mental image of Mitt Romney's face. Ratings were
on a scale of 0 to 7, with 0 being "not at all trustworthy"
and 7 being "extremely trustworthy." Here are the
29 ratings:19 MITT
28
21
16
2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1
4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6
4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7
(a) Suppose we can consider this an SRS of all U.S. col-
lege students. Make a stemplot. Is there any sign of
major deviation from Normality?
20.33
(b) Give a 95% confidence interval for the mean rating.
(c) Is there significant evidence at the 5% level that the
mean rating is greater than 3.5 (a neutral rating)?
tomio](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F754ba9cb-05fb-45a9-858f-cfd568f02df7%2F2ac939f0-0b5c-4105-a7e7-f999a8a708be%2F1ip2z6i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:20.30 What do you make of Mitt? Twenty-nine college stu-
dents, identified as having a positive attitude about Mitt
Romney as compared to Barack Obama in the 2012
presidential election, were asked to rate how trustwor-
thy the face of Mitt Romney appeared, as represented in
their mental image of Mitt Romney's face. Ratings were
on a scale of 0 to 7, with 0 being "not at all trustworthy"
and 7 being "extremely trustworthy." Here are the
29 ratings:19 MITT
28
21
16
2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1
4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6
4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7
(a) Suppose we can consider this an SRS of all U.S. col-
lege students. Make a stemplot. Is there any sign of
major deviation from Normality?
20.33
(b) Give a 95% confidence interval for the mean rating.
(c) Is there significant evidence at the 5% level that the
mean rating is greater than 3.5 (a neutral rating)?
tomio
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