The operator of a nuclear power plant requires fuel rods to have a mean percentage of enrichment of 2.95. A fuel rod manufacturer takes a random sample of 12 specimens and reports their percentage of enrichment. The reported measurements were as follows. 2.94 2.90 3.00 2.75 2.90 | 2.75 2.82 3.00 2.95 3.05 2.95 2.81 What is the upper limit of a 99% two-sided confidence interval on the mean percentage of enrichment?

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The operator of a nuclear power plant requires fuel rods to have a mean percentage of enrichment of 2.95. A fuel rod manufacturer takes a random
sample of 12 specimens and reports their percentage of enrichment. The reported measurements were as follows.
2.94
|2.90
2.75
3.00
|2.75
2.90
2.95
3.00
2.81
2.95
3.05
2.82
What is the upper limit of a 99% two-sided confidence interval on the mean percentage of enrichment?
Transcribed Image Text:The operator of a nuclear power plant requires fuel rods to have a mean percentage of enrichment of 2.95. A fuel rod manufacturer takes a random sample of 12 specimens and reports their percentage of enrichment. The reported measurements were as follows. 2.94 |2.90 2.75 3.00 |2.75 2.90 2.95 3.00 2.81 2.95 3.05 2.82 What is the upper limit of a 99% two-sided confidence interval on the mean percentage of enrichment?
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