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Fed [463]
4 years ago
15

When the level of confidence and sample standard deviation remain the same, a confidence interval for a population mean based on

a sample of n = 100 will be _____ a confidence interval for a population mean based on a sample of n = 50.
A. wither than
B. narrower than
C. equal to
Mathematics
1 answer:
miskamm [114]4 years ago
6 0

Answer:

A narrower than

Step-by-step explanation:

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Ma= P2-P1/t solve for p1​
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Answer:

P1 =  P2 - ma*t

Step-by-step explanation:

ma= P2-P1/t

we multiply by t both sides of the equation

ma*t = (P2 - P1)*t/t

ma*t = P2 - P1

we sum by P1 both sides of the equation:

P1 +ma*t = P2 - P1 +P1

We ave:

P1 + ma*t = P2

we subtract by ma*t both sides of the equation:

P1 + ma*t -ma*t = P2 - ma*t

finally we have:

P1 =  P2 - ma*t

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