Determine the surface area of a rectangular prism if

Mathematics

1 answer:

Aneli [31]2 years ago

7 0

Answer:

236in2

Step-by-step explanation:

the equation is:

2[ (lw)(hl)(hw)]

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notsponge [240]

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Given:
n = 20, sample size
xbar = 17.5, sample mean
s = 3.8, sample standard deiation
99% confidence interval

The degrees of freedom is
df = n-1 = 19

We do not know the population standard deviation, so we should determine t* that corresponds to df = 19.
From a one-tailed distribution, 99% CI means using a p-value of 0.005.
Obtain
t* = 2.8609.

The 99% confidence interval is
xbar +/- t*(s/√n)

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The 99% confidence interval is
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Answer: The 99% confidence interval is (15.07, 19.93)

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Oh okay I will have a good day