You are interested in finding a 98% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 11 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 23 9 27 6 27 9 5 10 17 26 27 a. To compute the confidence interval use a t or z distribution? b. With 98% confidence the population mean commute for non-residential college students is between ____ and _____ miles. c. If many groups of 11 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About _____ percent of these confidence intervals will contain the true population mean number of commute miles and about ____ percent will not contain the true population mean number of commute miles
You are interested in finding a 98% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 11 randomly selected non-residential college students. Round answers to 3 decimal places where possible.
| 23 | 9 | 27 | 6 | 27 | 9 | 5 | 10 | 17 | 26 | 27 |
a. To compute the confidence interval use a t or z distribution?
b. With 98% confidence the population mean commute for non-residential college students is between ____ and _____ miles.
c. If many groups of 11 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About _____ percent of these confidence intervals will contain the true population mean number of commute miles and about ____ percent will not contain the true population mean number of commute miles
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