FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When we test np and n(1-p) to ensure they are both greater than or equal to 10, what are we trying to determine?
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The standard deviation
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The test statistic
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If any bias is present
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If the data is normal
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Explanation:
Detailed explanation-1: -You can test the equality of two proportions obtained from independent samples using the Pearson chi-square test.
Detailed explanation-2: -If the population variance (2 ) is unknown and the sample is large (n≥30 n ≥ 30 ) then we use a z-test. In the test statistic, we replace the population variance 2 with s2 .
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