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madam [21]
3 years ago
15

Alyssa used 12 gallons of white paint for the ceiling of her kitchen and 13 gallons of white paint for her bedroom. She used

Mathematics
1 answer:
Arturiano [62]3 years ago
6 0
She used 10 more gallons of green paint

Hope this helps if it does yourwelcome
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6. A car dealership would like to estimate the mean mpg of its new model car with 90% confidence. The population is normally dis
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Answer:

92.9997<\mu<99.5203

Step-by-step explanation:

Using the formula for calculating the confidence interval expressed as:

CI = xbar ± Z * S/√n where;

xbar is the sample mean

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S is the sample standard deviation

n is the sample size

Given parameters

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Z at 90% CI = 1.645

S = 10.70.

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Required

90% confidence interval for the population mean using the sample data.

Substituting the given parameters into the formula, we will have;

CI = 96.52 ± (1.645 * 10.70/√25)

CI = 96.52 ± (1.645 * 10.70/5)

CI = 96.52 ± (1.645 * 2.14)

CI = 96.52 ± (3.5203)

CI = (96.52-3.5203, 96.52+3.5203)

CI = (92.9997, 99.5203)

<em>Hence a 90% confidence interval for the population mean using this sample data is 92.9997<</em>\mu<em><99.5203</em>

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What is the circumstances of this circle? Use 3.14 for
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Is

Step-by-step explanation:

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