The manufacturer of a particular brand of microwave popcorn claims that only 2 percent of its kernels of corn fail to pop. A competitor, believing that the actual percentage is larger, tests 2, 000 kernels and finds that 44 failed to pop. Do these results provide sufficient evidence to support the competitors belief?

TESTS OF SIGNIFICANCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The manufacturer of a particular brand of microwave popcorn claims that only 2 percent of its kernels of corn fail to pop. A competitor, believing that the actual percentage is larger, tests 2, 000 kernels and finds that 44 failed to pop. Do these results provide sufficient evidence to support the competitor’s belief?

A	One-Sample Z Test for a Proportion
B	One-Sample T Test for a Mean
C	Two-Sample Z Test for a Proportion
D	Matched-Pairs T Test for a Mean

Explanation:

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RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

TESTS OF SIGNIFICANCE