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N A normal distribution has a mean of 70 and a standard deviation of 15. Refer to the table in Appendix B.1. Determine the value

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N A normal distribution has a mean of 70 and a standard deviation of 15. Refer to the table in Appendix B.1. Determine the value above which 80 percent of the values will occur. (Round z-score computation to 2 decimal places and t answer to 2 decimal places.) X 82.60

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