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Business, 11.12.2019 05:31, rosie20052019
Asample of 25 different payroll departments found that the employees worked an average of 310.3 days a year with a standard deviation of 23.8 days.
what is the 90% confidence interval for the average days worked by employees in all payroll departments?
a. 301.0 < < 319.6
b. 298.0 < < 322.6
c. 302.2 < < 318.4
d. 314.1 < < 316.8
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Answers: 3
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