Unemployment Following is a sample of unemployment rates (in percentage points) in the United States sampled from the period 1990–2004:40
4.2, 4.7, 5.4, 5.8, 4.9.
a. Compute the mean and standard deviation of the given sample. (Round your answers to one decimal place.)
b. Assuming that the distribution of unemployment rates in the population is symmetric and bell shaped, 95% of the time, the unemployment rate is between ____ and ____ percent.
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill