Construct a 95 confidence intervall for the popallation mean Assume the population has a normal...

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Construct a 95 confidence intervall for the popallation mean Assume the population has a normal distribution A sample of 20 part time workers had mean annual earnings of 3120 with a standard deviation of 677 Round to the neare 2803 3437 2135 2567 2657 2891 1324 1567

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