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SmokeyRN
30.07.2019 •
Mathematics
Miguel has an aquarium in the shape of a rectangular prism. the base is 30.25 inches long and 12.5 inches wide. the aquarium is 12.75 inches high. what is the volume of the aquarium to the nearest cubic inches?
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Ответ:
30.25 × 12.5 × 12.75 = 4821.09375 in^3
Hope this helps!
Ответ:
And the confidence interval for the deviation would be obtained taking the square root of the last result and we got:
3.9<σ<8.8
Step-by-step explanation:
Data given:
65.2 71.9 72.8 73.1 73.1 73.5 75.5 75.7 75.8 76.1 76.2 76.2 77.0 77.9 78.1 79.6 79.7 79.9 80.1 82.2 83.7 93.8
The sample mean would be given by:
We can calculate the sample deviation with this formula:
And we got:
s=5.437 represent the sample standard deviation
n=22 the sample size
Confidence=99% or 0.99
The confidence interval for the population variance is given by:
The degrees of freedom given by:
The Confidence is 0.99 or 99%, the value of significance is
and
, and the critical values are:
And the confidence interval would be:
And the confidence interval for the deviation would be obtained taking the square root of the last result and we got:
3.9<σ<8.8