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An SRS of size 100 is taken from Population A with proportion 0.8 of successes. An
Chapter 10, Problem t10.8(choose chapter or problem)
An SRS of size 100 is taken from Population A with proportion 0.8 of successes. An independent SRS of size 400 is taken from Population B with proportion 0.5 of successes. The sampling distribution for the difference (Population A Population B) in sample proportions has what mean and standard deviation? (a) mean = 0.3; standard deviation = 1.3 (b) mean = 0.3; standard deviation = 0.40 (c) mean = 0.3; standard deviation = 0.047 (d) mean = 0.3; standard deviation = 0.0022 (e) mean = 0.3; standard deviation = 0.0002
Questions & Answers
QUESTION:
An SRS of size 100 is taken from Population A with proportion 0.8 of successes. An independent SRS of size 400 is taken from Population B with proportion 0.5 of successes. The sampling distribution for the difference (Population A Population B) in sample proportions has what mean and standard deviation? (a) mean = 0.3; standard deviation = 1.3 (b) mean = 0.3; standard deviation = 0.40 (c) mean = 0.3; standard deviation = 0.047 (d) mean = 0.3; standard deviation = 0.0022 (e) mean = 0.3; standard deviation = 0.0002
ANSWER:Step 1 of 4
Given: