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Unformatted text preview: values are a) _________ b) _____________________ 5. What is the standard normal distribution 6. Write the formula here that converts any observation score to a "standard score" 7. Using the Table of Values for Standard Normal (Put a link to NormalTables) to compute a) the 80 th percentile of the standard normal density. b) the 90 th percentile of the standard normal density. c) the 20 th percentile of the standard normal density.(What is the relationship of this value to that in (a)) 8. Refer to the Exercise 13.10 (p.281 in the Text) and write down the formula to compute the proportion of pregnancies which take longer than 270 days. 9. Refer again to Exercise 13.10 in the Text. Do the work here that computes how long the top 25% of pregnancies must last...
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 Spring '10
 Mr.Deely
 Statistics, Normal Distribution, Standard Deviation, 25%, 270 days, standard normal density.

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