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For a distribution of scores with = 82 and standard deviation = 2.5, find the following:
(Don't forget to sketch the normal curve to help you visualize what you are trying to find.)
A. What is the percentage of scores falling between the mean and a raw score of 84?
B. What is the probability of a score falling above a raw score of 86?
C. What is the probability of a score falling between the raw scores of 83 and 87?
D. The percentile rank of a score of 79.
E. The percentile rank of a score of 89.
Universe or Population The word universe as used in statistics denotes the aggregate from which a sample is to be taken. According to Simpson and Kafka, a universe or populatio
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Assume that a simple random sample has been selected from a normally distribute population and test the given claim. Identify the null and alternative hypotheses, test statistic,
introduction of median
it is said that management is equivalent to decision making? do you agree? explain
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Mathematical Properties The sum of deviations of the items from the arithmetic mean (taking signs into account) is always zero, i.e. = 0. The sum of
A salesperson visits from house to house to sell her knives. The probability that she makes a sale at a random house is .3. Given that she makes a sale, the sale is worth $100 with
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