A Normal distribution has mean µ = 21 and standard deviation o = 3.2. Find the following. (a) the percent of observations less than 25.6 (b) the percent of observations greater than 16 (c) the percent of observations less than 18.2 (d) the percent of observations between 16 and 18.2

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A: given data  normal distribution percentage of scores above Z:1.04 = ?

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A: Given that, Mean = 46 Standard deviation = 12

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A: proportion of a normal distribution is located between the mean and z = 2.00

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Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

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A: Given that: Mean, M=4 Standard deviation, SD=1.5

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A: NORMAL DISTRIBUTION ,μ=40σ=8 proportion of the population is between 37 and 48=?

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A: Given,standard deviation(s)=4a score(X)=35Z-score=-1.25

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A: From the provided information, The z score is below 0.82.

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A: The test hypotheses are:Null hypothesis:H0: μ = 4.7.Alternative hypothesis:H1: μ ≠ 4.7.

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