x1 = 18, n1 = 30, x2 = 10, n2 = 20; two-tailed test, = 0.05;
Question:
a. Determine the sample proportions.
b. Decide whether using the two-proportions z-procedures is appropriate. If so, also do parts (c) and (d).
c. Use the two-proportions z-test to conduct the required hypothesis test.
d. Use the two-proportions z-interval procedure to find the specified confidence interval.
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a p 1 x 1 n 1 18 30 060 p 2 x 2 n 2 10 20 050 p p x 1 x 2 n 1 n 2 28 50 056 b x 1 ...View the full answer
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