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Mathematics, 31.03.2020 03:20 lily24113
A survey was conducted of the age (in years) of 30 randomly selected customers. The mean was 29.61 years and the standard deviation was 10.19 years. How large would the sample size have to be to cut the margin of error of a confidence interval based on this data in half?
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A survey was conducted of the age (in years) of 30 randomly selected customers. The mean was 29.61 y...
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