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2 years ago

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A scale of a room is 3.5 in. long and 2 in. wide. Scale is 1:20. What is the area of the actual room in square feet?

1 answer:

AleksAgata [21]2 years ago

3 0

First, multiply 3.5 by 20 and 2 by 20 to get the real width and length of the room(That would be 70 in. long and 40 in. wide). Then, change that into feet (Which would be 5.8 ft. long and 3.3 ft. wide). Lastly multiply the length by the width. The answer would then be 19.14.

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$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

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Step-by-step explanation:

Information given

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$s=0.24$ represent the sample standard deviation

$n=81$ sample size

$\mu_o =9.33$ represent the value to verify

$\alpha=0.05$ represent the significance level

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$p_v$ represent the p value

Hypothesis to test

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Replacing the info given we got:

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