A study has been made to compare the nicotine contents of cigarettes and electronic cigarettes. A sample of measurements of nicotine content in cigarettes (Group 1) is obtained for comparison with another sample obtained from electronic cigarettes (Group 2). Dataset is available at nicotine content.csv Assuming the measurements for both groups follow a normal distribution and the populations' variances are equal, what is the lower bound of a 95% confidence interval for the difference between the means of the first group and the second group. i.e., μ₁ −μ₂. Note: Please round your answer to four decimal places.
A study has been made to compare the nicotine contents of cigarettes and electronic cigarettes. A sample of measurements of nicotine content in cigarettes (Group 1) is obtained for comparison with another sample obtained from electronic cigarettes (Group 2). Dataset is available at nicotine content.csv Assuming the measurements for both groups follow a normal distribution and the populations' variances are equal, what is the lower bound of a 95% confidence interval for the difference between the means of the first group and the second group. i.e., μ₁ −μ₂. Note: Please round your answer to four decimal places.
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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[STATISTICS] How do you solve this? 95% confidence interval
The data is given
Transcribed Image Text:A study has been made to compare the nicotine contents of cigarettes and electronic cigarettes.
A sample of measurements of nicotine content in cigarettes (Group 1) is obtained for comparison with
another sample obtained from electronic cigarettes (Group 2).
Dataset is available at nicotine content.csv
Assuming the measurements for both groups follow a normal distribution and the populations'
variances are equal, what is the lower bound of a 95% confidence interval for the difference between
the means of the first group and the second group. i.e., ₁ - 2.
Note: Please round your answer to four decimal places.
Transcribed Image Text:A1
1
2
3
4
5
6
7
8
9
10
11
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13
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22
A
B
Nicotine C Group
12.9 1
10.2 1
7.4 1
71
10.5 1
11.9 1
7.1 1
9.9 1
14.4
11.3
10.2 2
6.9 2
10.9 2
11
10.1
5.3
7.5
10.3
9.2
8.8
X✓ fx Nicotine Content
с
D
1
1
222
2
2
22
E
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