Mathematics, 17.08.2019 04:10, kcain1020
Asurvey of 225 students showed the mean number of hours spent studying per week was 20.6 and the standard deviation was 2.7.
assuming a 90% confidence level, the margin of error is approximately
Answers: 3
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Asurvey of 225 students showed the mean number of hours spent studying per week was 20.6 and the sta...
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