Question

Determine the point estimate of the population mean and margin of
error for the confidence interval with lower
bound 29 and upper bound: 45 .

Answer #1

Solution

Given the confidence interval for the population mean is (29,45)

i.e. upper bound = 45

lower bound = 29

We know that the confidence interval is nothing but

point estimate margin of the error

So,

upper bound = point estimate + margin of error

lower bound = point estimate - margin of error

Solving these two equations , we get

point estimate =

= (45 + 29)/2

= 37

Margin of error =

= (45 - 29)/2

= 8

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The margin of error for the confidence interval is _____.

determine the point estimate of the population proportion, the
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upper bound=0.835
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The point estimate of the population is:
The margin of error is:
The number of individuals in the sample with the specified
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upper bound=0.903,
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upper bound=0.903,
n=1000
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Determine the point estimate (p ^) of the population proportion
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Lower bound: 0.223, upper bound: 0.285

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