Question

A.) Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 116 and 144?

B.) Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 116 and 130?

C.) Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 102 and 144?

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Answer #1

1. Suppose a population is known to be normally distributed with
a mean, μ, equal to 116 and a standard deviation, σ, equal to 14.
Approximately what percent of the population would be between 102
and 144?
2. Suppose a population is known to be normally distributed with
a mean, μ, equal to 116 and a standard deviation, σ, equal to 14.
Approximately what percent of the population would be between 102
and 130?
3. Suppose a population is known...

A population is normally distributed with mean μ = 100 and
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Suppose that a population is known to be normally distributed
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If a population is distributed with a mean μ and a standard
deviation σ, then the distribution of sample means is
distributed
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B) normally with mean μ and standard deviation σ/√(n).
C) with mean μ and standard deviation σ.
D) with mean μ and standard deviation σ/√(n).

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a. What score should a student aim to receive to be in the 95th
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b. You took a random sample of 25 students from this population.
What is the probability that the average score in the sample will
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1.
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What proportion of Hoover vacuum cleaners will last 14 years
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2. Suppose the lifetimes of Hoover vacuum cleaners are
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population standard deviation (σ) of 1.4 years.
Calculate the 80th percentile.
3. Suppose the lifetimes of Hoover vacuum cleaners...

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What is the probability that a fish caught in an area will be
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a. Find the population mean μ if the population standard
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5 grams.
(a) State the null and...

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