Calculate the 95% confidence interval for these set of data: 3.3,3.4,3.1 and 3.6 ppm a. 3.35土0.22 ppm Degree of Freedom 90% 631 292 235 213 2.02 194 190 80% 95% 99% 99.9% b.3.35士 0.17ppm 637 992 584 460 4.03 12.7 430 637 316 3.08 189 164 153 1.48 144 142 C. 3.35士 0.25 ppm 3.18 129 2.78 8.61 6.87 d. 3.35士 0.11 ppm 257 245 3.71 3.50 5.96 541 e. 3.35+0.33 ppm 236

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Calculate the 95% confidence interval for these set of data:
3.3,3.4,3.1 and 3.6 ppm
a. 3.35± 0.22 ppm
Degree of
Frodon
90%
95%
99.9 %
637
31.6
12.9
8.61
6.87
80%
9%
b. 3.35±0.17 ppm
637
992
5.84
460
403
631
292
12.7
4.30
3.18
278
1.
3.08
1.89
164
155
148
c. 3.35± 0.25 ppm
213
202
194
190
d. 3.35+ 0.11 ppm
257
245
5.96
371
3.50
e. 3.35+0.33 ppm
142
236
5.41
Please fill in the space with one ofthe following characters (a or b or c or d or e)
Answer:
Transcribed Image Text:Calculate the 95% confidence interval for these set of data: 3.3,3.4,3.1 and 3.6 ppm a. 3.35± 0.22 ppm Degree of Frodon 90% 95% 99.9 % 637 31.6 12.9 8.61 6.87 80% 9% b. 3.35±0.17 ppm 637 992 5.84 460 403 631 292 12.7 4.30 3.18 278 1. 3.08 1.89 164 155 148 c. 3.35± 0.25 ppm 213 202 194 190 d. 3.35+ 0.11 ppm 257 245 5.96 371 3.50 e. 3.35+0.33 ppm 142 236 5.41 Please fill in the space with one ofthe following characters (a or b or c or d or e) Answer:
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