Mathematics, 29.11.2019 05:31 alix1234567888
The following data were collected from 12 rain gauges in a park. build a 95% ci for the mean rainfall at the park.
4.65 3.89 2.73 4.35 3.80 4.86 4.33 4.37 4.76 4.05 3.05 3.87
1. copy the data and paste into excel. if you use paste> paste special> text, it should appear in a column.
2. compute the sample mean and sample standard deviation. use the function wizard or type =average(data range) and =stdev. s(data range)
3. find the critical value t* use the formula for a ci to find upper and lower endpoints
Answers: 3
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