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Author Question: A large university is interested in learning about the average time it takes students to drive to ... (Read 66 times)

wenmo

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on: Feb 14, 2020
A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 238 students and asked each to provide the amount of time they spent traveling to campus. This variable, travel time, was then used to create a confidence interval and to conduct a test of hypothesis, both of which are shown in the printout below.

One-Sample Z Test

Null Hypothesis: μ = 20
Alternative Hyp: μ > 20


​95% Conf Interval
Variable     Mean    SE      Lower   Upper   Z     P
Camera Price 23.243  1.3133  20.669  25.817  2.47  0.0071

Cases Included 238

What conclusion can be made from the test of hypothesis conducted in this printout?  Begin each answer with, "When testing at α = 0.01…"
◦ …there is sufficient evidence to indicate that the average travel time of all students exceeds 20 minutes.
◦ …there is sufficient evidence to indicate that the average travel time of all students is equal to 20 minutes.
◦ …there is insufficient evidence to indicate that the average travel time of all students exceeds 20 minutes.
◦ …there is insufficient evidence to indicate that the average travel time of all students is equal to 20 minutes.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by wenmo on Feb 14, 2020

quynhmickitran

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Reply #1 on: Feb 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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wenmo

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Reply 2 on: Feb 14, 2020
Excellent

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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