Question: confidence intervals using R Studio , and interpret them. A random sample of 325 statistics tutorials was selected from the past 5 years and the

confidence intervals using R Studio , and interpret them.

A random sample of 325 statistics tutorials was selected from the past 5 years and the number of students absent from each one recorded. The results were x = 10.5 and s = 3.9 absences. Estimate the mean number of absences per tutorial over the past 5 years with 90% confidence, and write its interpretation.

A quality control technician wants to estimate the proportion of soda cans that are underfilled. He randomly samples 220 cans of soda and finds 11 underfilled cans. Find the 98% confidence interval, and write its interpretation

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