The file P20_47.xlsx contains the measured diameters (in inches) reported by the prod uction foreman of 500 rods produced by Rodco. A rod is considered acceptable if it is at least 1.0 inch in diameter. In the past the diameter of the rods produced by Rodco has followed a symmetric distribution.
a. Construct a histogram of these measurements.
b. Comment on any unusual aspects of the histogram.
c. Can you guess what might have caused the unusual aspect(s) of the histogram?