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Elena L [17]
3 years ago
7

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
490

peas with

94

of them having yellow pods. Find the value of the test statistic.
Mathematics
1 answer:
AnnZ [28]3 years ago
6 0

p = 0.25

q = 1 - p = 0.75

x = 82

n = 400

psample = x/n = 82/400 = 0.205

test statistic, z = (psample - p) / sqrt(pq/n) = (0.205 - 0.25) / sqrt(0.25×0.75/400) = -2.078

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