Chapter 6: Q. 6.77 (page 269)
Determine
Short Answer
The score under the usual normal curve with the area to its right is around .
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Chapter 6: Q. 6.77 (page 269)
Determine
The score under the usual normal curve with the area to its right is around .
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31. Mortgage Industry Employees. In an issue of National Mortgage News, a special report was published on publicly traded mortgage industry companies. A sample of mortgage industry companies had the following numbers of employees.

a. Obtain a normal probability plot of the data.
b. Use part (a) to identify any outliers.
c. Use part (a) to assess the normality of the variable under consideration.
Explain in detail what a normal probability plot is and how it is used to assess the normality of a variable.
According to Table II, the area under the standard normal curve that lies to the left of is . Without further consulting Table II, determine the area under the standard normal curve that lies to the right of . Explain your reasoning.
Obtain the score that has an area of to its right.
Briefly, for a normally distributed variable, how do you obtain the percentage of all possible observations that lie within a specified range?
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