STANDARD NORMAL DISTRIBUTION. All normal distributions are same when standardized Find areas under normal curve from table that gives areas under curve for standard normal distribution
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3.10 Use table A to find the proportion of observations from a standard normal distribution that satisfies each of the following statements. In each case, sketch a standard normal curve and shade the are under the curve that is the answer to the question.
3.11 An important measure of the performance of a locomotive is its “adhesion” which is the locomotive’s pulling force as a multiple of its weight. The adhesion of one 4400-horspower diesel locomotive model varies in actual use according to a normal distribution with mean 0.37 and standard deviation of 0.04.
3.12 Use Table A to find the value z of a standard normal variable that satisfies each of the following conditions. (Use the value of z from table A that comes closest to satisfying the condition). In each case, sketch a standard normal curve with your value of z marked on the axis
3.13 Scores on the Wechler Adult Intelligence Scale are approximately normally distributed with mean of 100 and standard deviation of 15.