Normal with mean 22.8 inches and standard devia- tion 1.1 inches. (a) A male soldier whose head circumference is 23.9 inches would be at what percentile? Show your method clearly. (b) The army's helmet supplier regularly stocks hel- mets that fit male soldiers with head circumfer- ences between 20 and 26 inches. Anyone with a head circumference outside that interval requires a customized helmet order. What percent of male soldiers require custom helmets? (c) Find the interquartile range for the distribution of head circumference among male soldiers.

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A: Given, μ = 50000 σ = 8000 Mean, -x = 45600 n = 29 alpha = 0.05

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Q: You are interested in estimating the the mean weight of the local adult population of female…

A: Given :  We are interested in estimating the mean weight of the local adult population of female…

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A: x¯=4.5 poundsσ=0.7μ=4.4n=200α=0.01

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A: It is provided that,Mean (µ) = 4.343Standard deviation (σ) = 3.131.

Q: You are interested in estimating the the mean weight of the local adult population of female…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

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A: Given data,E=4σ=19z value at 97% confidence is Zc=2.17n=?

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A:

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A: Given data,n=9x=9s=3.3α=0.10

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A:

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A:

Q: You are interested in estimating the the mean weight of the local adult population of female…

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A:

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Q: An article in the San Jose Mercury News stated that students in the California state university…

A: Given, Sample size (n) = 48 Sample mean (x̅) = 5.1 Sample standard deviation (s) = 1.2

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A:

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A:

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Q: what is the p- value

A:

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A:

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A: Hypotheses: H0:μ≥150Ha:μ<150 Note that this is a left-tailed test as the direction of alternative…

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A:

Q: The daily income of bank auditors in SSS Commercial Bank is normally distributed with a mean of ₱675…

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A: n = 15 mu = 64 xbar = 65 s = 1.1

Q: For a normally distributed variable, what is the relationship between the percentage of all possible…

A: Justification:The area under the associated normal curve to the right of 7 is given.From the given…

Q: You are interested in estimating the the mean weight of the local adult population of female…

A: Obtain the sample size needed. The sample size needed is obtained below as follows :