Riley Ryan
03/05/2023 · Middle School
Miles Driven Per Day A random sample of 38 drivers found that they had driven on average 22 miles per day, Part 1 of 2 (a) Find the \( 95 \% \) confidence interval of the mean for all drivers if the standard deviation of the population is 5.2 . Round your answers to one decimal place. Part: \( 1 / 2 \) Part 2 of 2 (b) Find the \( 90 \% \) confidence interval of the mean for all drivers if the standard deviation of the population is 5.2 . Round your answers to one decimal place.
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95% CI: (20.3, 23.7)
90% CI: (20.6, 23.4)
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