An engineer suspects that a power plant in the city is increasing the air pollution in the vicinity of the plant. A sample of measurements of carbon monoxide (in mg/m3 of air) in the vicinity of the plant (Group 1) is obtained for comparison with another sample obtained from other locations (Group 2) in the city. Dataset is available at pollution.txt↓ 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.
An engineer suspects that a power plant in the city is increasing the air pollution in the vicinity of the plant. A sample of measurements of carbon monoxide (in mg/m3 of air) in the vicinity of the plant (Group 1) is obtained for comparison with another sample obtained from other locations (Group 2) in the city. Dataset is available at pollution.txt↓ 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
Related questions
Question
[Statistics] How do you find the lower bound of a confidence interval for the difference of means? The data is given below
Pollution Group
40 1
16 1
44 1
47 1
26 1
64 1
35 1
53 1
45 1
52 1
31 1
38 1
44 1
29 1
45 1
47 1
34 2
28 2
36 2
19 2
35 2
37 2
36 2
39 2
32 2
25 2
37 2
40 2
44 2
38 2
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