According to one survey taken a few years ago, 32% of Americanhouseholds have attempted to reduce their long-distance phone billsby switching long-distance companies. Suppose that businessresearchers want to test to determine if this figure is stillaccurate today by taking a new survey of 80 American households whohave tried to reduce their long-distance bills. Suppose furtherthat of these 80 households, 22% say they have tried to reducetheir bills by switching long-distance companies. Is this resultenough evidence to state that a significantly different proportionof American households are trying to reduce long-distance bills byswitching companies? Let ? = .01.
