What conditions need to be met in order to use the Z value in the formula for the test statistic in a hypothesis test for a proportion? (Remember the data is binomial; why can we use Z?) np^ and n(t-p^) must both be at least 10 npo and n(1-po) must both be at least 10 np and n(1-p) both at least 10 Question 16 pts For what value(s) of p^ is the margin of error the smallest in a confidence interval for p? Choose the best answer when p^ is close to when p^ is close to 1/2 when p^ is close to 0 when p^ is close to 0 or 1
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The correct condition is when both np and n(1-p) are at least 10. For the second question, we need to find the value(s) of p^ for which the margin of error is the smallest in a confidence interval for p. The margin of error is the smallest when p^ is close to 0 Show more…
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