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At the α=.05 test the claim that the difference between the mean salary for photographers in North Carolina is

less than $30,000. The result of a survey of randomly selected computer programmers and photographers in North Carolina are in this figure: Computer engineers: X = $50,000 S = $82,500 N = 31 Photographers: X = $ 21,000 S = $32,000 N = 33

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