A Large University Is Interested in Learning About the Average $\mathrm { H } _ { 0 }$

question 106

Multiple Choice

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 conduct a test of hypothesis.
The goal was to determine if the average travel time of all the university's students differed from 20 minutes. Find the large-sample rejection region for the test of interest to the college when using a level of significance of 0.05.

• A) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { z } < - 1.645\) or \(\mathrm { z } > 1.645\).
• B) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { z } > 1.645\).
• C) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { z } < - 1.96\).
• D) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { z } < - 1.96\) or \(\mathrm { z } > 1.96\).

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Definitions:

Piaget

Swiss psychologist known for his theory of cognitive development in children.

X Chromosome

One of the two sex chromosomes that determines an individual's genetic sex, XX for female and XY for male.

Cognitive Development

The process by which individuals perceive, think, and gain understanding of their world through the interaction and influence of genetic and learned factors.

Object Permanence

The understanding that objects continue to exist even when they cannot be observed, a concept developed during the sensorimotor stage of cognitive development.