A newspaper reported the top five states for sales of hybrid
cars in 2004 as California, Virginia, Washington, Florida, and
Maryland. Suppose that each car in a sample of 2004
hybrid car sales is classified by state where the sale took
place. Sales from states other than the top five were excluded from
the sample, resulting in the accompanying table.
(The given observed counts are artificial, but they are
consistent with hybrid sales figures given in the article.)
The 2004 population estimates from the Census Bureau
website are given in the accompanying table. The population
proportion for each state was computed by dividing each state
population by the total population for all five states. Use
the 𝜒2 goodness-of-fit test and a significance
level of
𝛼 = 0.01
to test the hypothesis that hybrid sales for
these five states are proportional to the 2004
population for these states.
Calculate the test statistic. (Round your answer to two decimal
places.)
𝜒2 =
P-value =
A newspaper reported the top five states for sales of hybrid cars in 2004 as California, Virginia, Washington, Florida,
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A newspaper reported the top five states for sales of hybrid cars in 2004 as California, Virginia, Washington, Florida,
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