A local elementary school determined that the average number of volunteers for their "Step into Spring" annual fundraiser has been 14 persons on average (per event).After taking additional measures to recruit volunteers this year,they got 28 people to volunteer.Test whether these additional measures increased the number of volunteers at a .05 level of significance.
A) Yes, because the number of volunteers doubled; this is a significant increase.
B) No, this is not a significant increase because the error term is too large.
C) This would have been significant if it were a two-tailed test.
D) There is not enough information to answer this question.

Question

Quizplus · Accepted Answer

To determine if the increase in volunteers is statistically significant, we need more information such as the standard deviation of the number of volunteers, the sample size for the current and previous years, and the specific statistical test to be used. Without this information, we cannot calculate the p-value or conduct a proper hypothesis test to compare the means.

A Local Elementary School Determined That the Average Number of Volunteers