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in a random sample of 40 refrigerators the mean repair cost was 14500 and the population standard deviation is 1570
the ages in years of the 5 employees at a particular computer store are 4143394329 assuming that these ages constitute
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you are testingnbsph0nbspmunbspnbsp95nbspagainstnbsphanbspmunbspltnbsp95nbspbased on an srs
a random sample of 900 13- to 17-year-olds found that 479 had a computer in their room with internet
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suppose that in the absence of special preparation sat mathematics scores vary normally with a mean of 475 and a
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