About 90% of the general population is right-handed. A researcher speculates that artists are less likely to be right-handed than the general population. In a random sample of 100 artists, 83 are right-handed. Which of the following best describes the p-value for this situation?
A) The probability that the population proportion of artists who are right-handed is 0.90.
B) The probability that the population proportion of artists who are right-handed is 0.83.
C) The probability the sample proportion would be as small as 0.83, or even smaller, if the population proportion of artists who are right-handed is actually 0.90.
D) The probability that the population proportion of artists who are right-handed is less than 0.90, given that the sample proportion is 0.83.

Question

Quizplus · Accepted Answer

The p-value is the probability of obtaining a sample result at least as extreme as the one observed during the test, assuming that the null hypothesis is true. In this case, it measures the likelihood of finding a sample with 83% or fewer right-handed artists if the true proportion of right-handed artists in the population is 90%.

About 90% of the General Population Is Right-Handed