Question

A survey was done in the town of Mechanicsville to estimate the proportion of cars that are red and made by companies based in Japan. A random sample of 25 cars from a student parking lot at Lee-Davis High School was taken. Which of the following statements is NOT correct?
A) This sample may not be representative of the cars in Mechanicsville because mainly students park at Lee-Davis High School
B) If the particular parking space is vacant, we can simply select another parking space at random because it is unlikely that a space being vacant is related to the color or manufacturer of the car
C) It would be an error to simply select the first 25 parking spaces in the lot closest to the auditorium because there are a number of spaces there reserved for Drivers Ed vehicles, whose primary color is white
D) A different team doing the sampling independently would obtain different answers for their sample proportions
E) The results will be the same regardless of the time of day that the sample was taken

Answer 1

Answer:

Option E is not correct.

Explanation:

The time of the day will have a direct impact on the results of this survey.

If the survey is conducted at midnight, the number of cars may not even reach 25. A high school usually is more concurred between class hours, therefore, is recommendable to conduct the survey between those hours.  Thus, the statement is NOT correct.