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Flauer [41]
3 years ago
10

Carmela randomly selected 65 stamps from a stamp collection. Eleven of these were commemorative stamps. What is the interval est

imate for the proportion of commemorative stamps in the entire collection if the sampling method had a margin of error of ±0.025?
Mathematics
1 answer:
Olenka [21]3 years ago
3 0
Since there is no mean, we need to first get the probability:
p = 11/ 65 = 0.1692
This will make it easier to compute for the interval estimate. Interval Estimate = probability ± margin of error
upper limit = 0.1692 + 0.025 = 0.1942

lower limit = 0.1692 - 0.025 = 0.1442
So the interval estimate is 0.1442 < x < 0.1942
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