Solution :
= x / n = 115 / 560 = 0.2054
1 - P0 = 1 - 0.25 = 0.75
Test statistic = z
= - P0 / [P0 * (1 - P0 ) / n]
= 0.2054 - 0.25 / [(0.25 (0.75)) / 560]
= -2.44
The value of the test statistic is -2.44
The claim is that the proportion of peas with yellow pods is equal to 0.25 (or...
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