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Oxana [17]
2 years ago
13

Helpppppppppppp anyone?

Mathematics
1 answer:
WITCHER [35]2 years ago
3 0

Answer:

D is the correct answer

Step-by-step explanation:

cylinder volume equation: v=\pir^{2}h

Water heater x= \pi(8.5)^2 x 48= 10895.04

Water heater y= \pi (9.5)^2 x 44= 12475.26

Water heater z= \pi (10.5)^2 x 32= 11083.54

A is false because water heater Y has the greatest volume

B is false because all the volume are different

C is false because z has the smallest volume

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Answer:

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Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.9}{2} = 0.05

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Now, find the margin of error M as such

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The upper end of the interval is the sample mean added to M. So it is 34.09 + 3.25 = 37.34.

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