ccording to the U.S. Department of Agriculture, the average American consumed 54.3 pounds (approximately seven gallons) of salad and cooking oils in 2008 (www.ers.usda.gov/data/foodconsumption). Suppose that the current distribution of salad and cooking oil consumption is approximately normally distributed with a mean of 54.3 pounds and a standard deviation of 14.5 pounds. Round your answers to two decimal places. a. What percentage of Americans’ annual salad and cooking oil consumption is less than 15 pounds? b. What percentage of Americans’ annual salad and cooking oil consumption is between 45 and 60 pounds? c. What percentage of Americans’ annual salad and cooking oil consumption is more than 95 pounds? d. What percentage of Americans’ annual salad and cooking oil consumption is between 55 and 70 pounds?
ccording to the U.S. Department of Agriculture, the average American consumed 54.3 pounds (approximately seven gallons) of salad and cooking oils in 2008 (www.ers.usda.gov/data/foodconsumption). Suppose that the current distribution of salad and cooking oil consumption is approximately
Round your answers to two decimal places.
a. What percentage of Americans’ annual salad and cooking oil consumption is less than 15 pounds?
b. What percentage of Americans’ annual salad and cooking oil consumption is between 45 and 60 pounds?
c. What percentage of Americans’ annual salad and cooking oil consumption is more than 95 pounds?
d. What percentage of Americans’ annual salad and cooking oil consumption is between 55 and 70 pounds?
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