(Requires a graphing program that can convert the scale on

Chapter 7, Problem 20

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(Requires a graphing program that can convert the scale on either axis from linear to logarithmic.) These data give the sound reduction in decibels through walls of different densities, measured in pounds per square foot of the wall. (Note: This assumes a fixed depth to the wall material.) a. Graph these data with wall density on the horizontal axis. Try linear, log-linear (with the log scale on the horizontal and then on the vertical axis), and log-log plots. In which format do the data look most linear? b. Use the format of the data from part (a) to construct a formula for sound loss as a function of wall density. c. What does your result suggest about data that appear linear when graphed on a semi-log plot, where the log scale is on the horizontal axis?