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Artemon [7]
3 years ago
6

Crop researchers plant 15 plots with a new variety of corn. The yields in bushels per acre are: 138.0 139.1 113.0 132.5 140.7 10

9.7 118.9 134.8 109.6 127.3 115.6 130.4 130.2 111.7 105.5 Assume that Math Notation bushels per acre.
a) Find the 90% confidence interval for the mean yield for this variety of corn.
b) Find the 95% confidence interval.
c) Find the 99% confidence interval.
d) How do the margins of error in (a), (b), and (c) change as the confidence level increases?
Mathematics
1 answer:
Kazeer [188]3 years ago
6 0
I am pretty sure A) or D)
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Let x = number of adults tickets sold
then, 1750 - x = number of children tickets sold

We know that the cost for adult tickets is $5 and and children is above calculated so sum total tickets sold cost is $7100.

($5)(x) + ($2)(1750-x) = $7100
5x - 2x + 3500 = 7100
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2 years ago
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Step-by-step explanation:

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