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Chapter 2: Q T2.1. (page 148)

Many professional schools require applicants to take a standardized test. Suppose that 1000 students take such a test. Several weeks after the test, Pete receives his score report: he got a 63, which placed him at the 73rd percentile. This means that

a. Pete鈥檚 score was below the median.

b. Pete did worse than about 63% of the test takers.

c. Pete did worse than about 73% of the test takers.

d. Pete did better than about 63% of the test takers.

e. Pete did better than about 73% of the test takers.

Short Answer

Expert verified

The correct option is (e) Pete did better than about 73% of the test takers.

Step by step solution

01

Given information

A test like this is given to 1000 students. Pete receives his score report many weeks after the test: he received a 63, putting him in the 73rd percentile.

02

Explanation

The 73rdpercentile is a data point where 73percent of all data is less than or equal to it. It also signifies that 27%of the data is more than or equal to the data point, implying that the researcher's score was lower than 73%of all test scores, implying that the researcher's score was higher than 73%of all test takers. Hence, the correct option is (e)

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Most popular questions from this chapter

I think I can! Refer to Exercise 55. The locomotive鈥檚 manufacturer is considering two changes that could reduce the percent of times that the train arrives late. One option is to increase the mean adhesion of the locomotive. The other possibility is to decrease the variability in adhesion from trip to trip, that is, to reduce the standard deviation.

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