2 years ago

Can someone explain to me how to do this? (inverse of function)

Mathematics

1 answer:

77julia77 [94]2 years ago

4 0

Its basically just the opposite.
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Answer:

Step-by-step explanation:

Confidence interval in less than symbol expressed as

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$

Where $\bar{x}$ is sample mean and $E$ is margin of error.

$13.03 < \mu 13.42
$

The given t interval is $(13.032 , 13.418 )
$

That is $\bar{x} - E = 13.032$ and $\bar{x} + E = 13.418$

Solve these two equation by adding together.

$2 \bar{x} = 13.032 + 13.418
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Solve this value of \bar{x} in equation $\bar{x} - E = 13.032$ and solve for $E$

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Best point estimate of $\mu = \bar{x} = 13.225
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Best point estimate of margin of error = 0.193

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

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Step-by-step explanation:

hope this helps

have a good day

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