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Ugo [173]
2 years ago
11

Jim earns 1,600 per month after taxes. he is working on his budget and has the first threecategories finished. Housing $576 Food

$272 Transportation $320
Mathematics
1 answer:
k0ka [10]2 years ago
4 0
Housing + Food + Transportation= 1,168
1,600 - 1,168= 432 left.
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A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is kn
loris [4]

Answer:

95 percent confidence interval for μ is determined by

(60.688 ,  69.312)

a) be the same

Step-by-step explanation:

<u>Step (i)</u>:-

Given data a random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph.

The sample size is n= 121

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

<u>Step (ii) :</u>-

Given  The 95 percent confidence interval for μ is determined as

(61.08, 68.92)

we are to reduce the sample size to 100 (other factors remain unchanged) so

given The sample size is n= 100

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

<u>Step (iii)</u>:-

95 percent confidence interval for μ is determined by

(x^{-} - 1.96\frac{S.D}{\sqrt{n} } , x^{-} + 1.96 \frac{S.D}{\sqrt{n} } )

(65 - 1.96\frac{22}{\sqrt{100} } , 65 + 1.96 \frac{22}{\sqrt{100} } )

(65 - 4.312 ,65 +4.312)

(60.688 ,  69.312) ≅(61 ,69)

This is similar to (61.08, 68.92) ≅(61 ,69)

<u>Conclusion</u>:-

it become same as (61.08, 68.92)

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12×12 squared is = 12•144/=

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If you need a better explanation just ask in the comments.

Happy to help! Please mark as BRAINLIEST! Thanks

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A. Is the answer
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740% written as a decimal is 7.4 as a mixed number it would be 7 4/10 or simplified it would be 7 2/5

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