Mathematics, 30.03.2020 20:21 sanafarghal
1. A sample of 33 airline passengers found that the average check-in time is 2.167. Based on long-term data, the population standard deviation is known to be 0.48. Find a 95% confidence interval for the mean check-in time (2 Points). 2. If 5% of parts produced in a factory are defective, what is the sample size that needs to be taken for 0.03 desired margin of error? Use 95% CL.
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