Mathematics, 21.04.2021 04:40 robertschulte116

Listed below are speeds (mi/ h) measured from southbound traffic on 1-280 near Cupertino, California (based on data from SigAlert). This simple random sample was obtained at 3:30 PM on a weekday. Use the sample data to construct a 95% confidence

interval estimate of the population standard deviation. Does the confidence interval describe the

standard deviation for all times during the week?

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