Question: Z-scores can be used to assess whether data values in a certain distribution are unusual. This is appropriate when the data distribution is approximately bell-shaped.

Z-scores can be used to assess whether data values in a certain distribution are unusual. This is appropriate when the data distribution is approximately bell-shaped. The National Oceanic and Atmospheric Administration (NOAA) reports that, from 1971 to 2000, July average temperatures in West Central Indiana had a mean of 74.5F with a standard deviation of 2.0F. Question 6 A July average temperature in West Central Indiana had a Z-score of -0.9. What is the July average temperature that corresponds to this Z-score? x = F

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