Suppose the Janitor Tests 300 Light Bulbs and Finds That $z = 1.21$

Multiple Choice

Suppose the janitor tests 300 light bulbs and finds that 33 bulbs are defective. What value of the test statistic should he report? Round to the nearest hundredth.

A) $z = 1.21$
B) $z = - 2.17$
C) $z = 2.17$
D) $z = - 1.21$