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Author Question: Suppose that a college professor lives 65 miles from campus and is interested in the average time it ... (Read 116 times)

mrsjacobs44

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on: Apr 14, 2020
Suppose that a college professor lives 65 miles from campus and is interested in the average time it takes her to commute to work each morning. Driving the same route each day, she records the time it takes her to get to work (in minutes) on 20 randomly selected days. Because there is construction on the route that she usually takes, there are days when it takes much longer than others to get to work. A histogram of the data shows that the data are skewed to the right. The information provided below shows the confidence intervals for the mean time to get to work using (A) raw (untransformed) data, and (B) log-transformed data, which showed a more normally distributed data set.



Calculate the width of both intervals in the original units of minutes (note that you will need to convert the log-transformed interval back into minutes). Which interval is narrower?
◦ Width of interval for untransformed data: 5.60; width of interval for transformed data: 6.53. The width of the interval for the untransformed data is narrower.
◦ Cannot be determined with the given information
◦ Width of interval for untransformed data: 5.60; width of interval for transformed data: 5.02. The width of the interval for the log transformed data is narrower.
◦ Width of interval for untransformed data: 5.02; width of interval for transformed data: 5.60. The width of the interval for the untransformed data is narrower.
Introductory Statistics: Exploring the World Through Data ¦ Gould, Ryan ¦ 2nd Edition
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Marked as best answer by mrsjacobs44 on Apr 14, 2020

Juro

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Reply #1 on: Apr 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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mrsjacobs44

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Reply 2 on: Apr 14, 2020
YES! Correct, THANKS for helping me on my review

lcapri7

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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