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Solution: Usual and Unusual Values. In Exercises, consider a

Chapter 3, Problem 12BSC

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Usual and Unusual Values. In Exercises 9–12, consider a value to be unusual if its z score is less than − 2 or greater than 2.

Female Voice Based on data from Data Set 17 in Appendix B, the words spoken in a day by women have a mean of 16,215 words and a standard

deviation of 7301 words. Consider the women with an unusual word count in a day. What are the numbers of words that separate the unusual word

counts from those that are usual?



Step 1 of 3

Given Mean(=16215


Given Z score is less than −2 or greater than 2.

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