The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). the sample statistics from one experiment include 480 480 peas with 127 127 of them having yellow pods. find the value of the test statistic.

Question

Mathematics

Clinton Simon

1 March, 10:58

The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). the sample statistics from one experiment include 480 480 peas with 127 127 of them having yellow pods. find the value of the test statistic.

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Answers (1)

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Skinny Minny · Answer 1

Solution:

p = 0.25

q = 1 - p = 0.75

x = 127

n = 480

psample = x/n = 127/480 = 0.2645

test statistic, z = (psample - p) / sqrt (pq/n) = (0.2645 - 0.25) / sqrt (0.25*0.75/480) = 0.733