According to the website www.collegedrinkingprevention.gov, "About 25 percent of college students report academic consequences of their drinking including missing class, falling behind, doing poorly on exams or papers, and receiving lower grades overall." A statistics student is curious about drinking habits of students at his college. He wants to estimate the mean number of alcoholic drinks consumed each week by students at his college. He plans to use a 90% confidence interval. He surveys a random sample of 71 students. The sample mean is 3.93 alcoholic drinks per week. The sample standard deviation is 3.78 drinks. Let's do some exploration with technology to see how changes in the confidence level affect the confidence interval. Use the applet below to answer the following questions. -♡ Central probability = 0.50 -Ņ A t-score = 0.6750 central probability = degrees of freedom = N 0.50 50 -♡2₂ 3
According to the website www.collegedrinkingprevention.gov, "About 25 percent of college students report academic consequences of their drinking including missing class, falling behind, doing poorly on exams or papers, and receiving lower grades overall." A statistics student is curious about drinking habits of students at his college. He wants to estimate the mean number of alcoholic drinks consumed each week by students at his college. He plans to use a 90% confidence interval. He surveys a random sample of 71 students. The sample mean is 3.93 alcoholic drinks per week. The sample standard deviation is 3.78 drinks. Let's do some exploration with technology to see how changes in the confidence level affect the confidence interval. Use the applet below to answer the following questions. -♡ Central probability = 0.50 -Ņ A t-score = 0.6750 central probability = degrees of freedom = N 0.50 50 -♡2₂ 3
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Answer the following question about this study. Use the applet above, if necessary.
Find the 90% confidence interval the statistics class is looking for.
(3.48, 4.38)
(3.03, 4.53)
(3.18, 4.68)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F23ef6a99-fa6e-4fe5-8102-00507e9eae31%2F3183ab42-c4ef-4576-92c4-0f8202840ee4%2Foulm9w_processed.png&w=3840&q=75)
Transcribed Image Text:Answer the following question about this study. Use the applet above, if necessary.
Find the 90% confidence interval the statistics class is looking for.
(3.48, 4.38)
(3.03, 4.53)
(3.18, 4.68)
![According to the website www.collegedrinkingprevention.gov, "About 25 percent of college students report academic consequences of their
drinking including missing class, falling behind, doing poorly on exams or papers, and receiving lower grades overall." A statistics student is
curious about drinking habits of students at his college. He wants to estimate the mean number of alcoholic drinks consumed each week by
students at his college. He plans to use a 90% confidence interval. He surveys a random sample of 71 students. The sample mean is 3.93
alcoholic drinks per week. The sample standard deviation is 3.78 drinks.
Let's do some exploration with technology to see how changes in the confidence level affect the confidence interval. Use the applet below to
answer the following questions.
-♡
Central probability = 0.50
-Ņ
A
t-score = 0.6750
central probability =
degrees of freedom =
N
0.50
50
-♡2₂
3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F23ef6a99-fa6e-4fe5-8102-00507e9eae31%2F3183ab42-c4ef-4576-92c4-0f8202840ee4%2F1wmyz18_processed.png&w=3840&q=75)
Transcribed Image Text:According to the website www.collegedrinkingprevention.gov, "About 25 percent of college students report academic consequences of their
drinking including missing class, falling behind, doing poorly on exams or papers, and receiving lower grades overall." A statistics student is
curious about drinking habits of students at his college. He wants to estimate the mean number of alcoholic drinks consumed each week by
students at his college. He plans to use a 90% confidence interval. He surveys a random sample of 71 students. The sample mean is 3.93
alcoholic drinks per week. The sample standard deviation is 3.78 drinks.
Let's do some exploration with technology to see how changes in the confidence level affect the confidence interval. Use the applet below to
answer the following questions.
-♡
Central probability = 0.50
-Ņ
A
t-score = 0.6750
central probability =
degrees of freedom =
N
0.50
50
-♡2₂
3
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