Question: Now let's see how sample size affects confidence intervals. We'll use the same data (first for n = 25 then n = 250) but instead

Now let's see how sample size affects confidence intervals. We'll use the same data (first for n = 25 then n = 250) but instead of running a hypothesis test we'll construct confidence intervals.

a)Suppose the DoT sampled 25 commuters and found the average travel time for this sample of commuters was 25.6 minutes with standard deviation 7.8 minutes. Construct a 95% confidence interval for the new average commute time, then give two interpretations of this interval.

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