Mathematics, 01.05.2021 01:00 beauburgess1108
The mean on a statewide geography test was 74 with a standard deviation of 12. West County sampled the scores of some of its students and reported a mean of 79 with a margin of error of plus or minus 1.9. To the nearest whole number, how many students were in West County's sample?
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The mean on a statewide geography test was 74 with a standard deviation of 12. West County sampled t...
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