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Refer to the Estate data, which report information on homes sold in the Goodyear, Arizona area...

Refer to the Estate data, which report information on homes sold in the Goodyear, Arizona area last year.

a. The mean selling price (in $ thousands) of the homes was computed earlier to be $221.10, with a standard deviation of $47.11. Use the normal distribution to estimate the percentage of homes selling for more than $280.00. Compare this to the actual result. Does the normal distribution yield a good approximation of the actual result?

  b. The mean distance from the center of the city is 14.629 miles, with a standard deviation of 4.874 miles. Use the normal distribution to estimate the number of homes 18 or more miles but less than 22 miles from the center of the city. Compare this to the actual results. Does the normal distribution yield a good approximation of the actual results?   

to estimate the number of homes  percentage of a home selling for more

Math   Statistics-And-Probability   
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