What is the lower and upper boundary for a 95% confidence interval for the difference between the mean number of accidents on the two dates? Please make sure to use exact values in calculation and round final answer to 4 decimal places!!

MATLAB: An Introduction with Applications
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What is the lower and upper boundary for a 95% confidence interval for the difference between the mean number of accidents on the two dates? Please make sure to use exact values in calculation and round final answer to 4 decimal places!!

7.25 Friday the 13th, Part II. The Friday the 13th study reported in Exercise 7.23 also provides data on
traffic accident related emergency room admissions. The distributions of these counts from Friday the 6th
and Friday the 13th are shown below for six such paired dates along with summary statistics. You may
assume that conditions for inference are met.
2
2
2
1
0
0
10
10
-5
0
Difference
Friday the 13th
6th
13th
diff
7.5 10.83 -3.33
3.33
3.6 3.01
6
6
6
5
Friday the 6th
Mean
SD
n
5
Transcribed Image Text:7.25 Friday the 13th, Part II. The Friday the 13th study reported in Exercise 7.23 also provides data on traffic accident related emergency room admissions. The distributions of these counts from Friday the 6th and Friday the 13th are shown below for six such paired dates along with summary statistics. You may assume that conditions for inference are met. 2 2 2 1 0 0 10 10 -5 0 Difference Friday the 13th 6th 13th diff 7.5 10.83 -3.33 3.33 3.6 3.01 6 6 6 5 Friday the 6th Mean SD n 5
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