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Out of 1000 welds that have been made on a tower, it is
Chapter 7, Problem 13E(choose chapter or problem)
QUESTION:
PROBLEM 13E
Out of 1000 welds that have been made on a tower, it is suspected that 15% are defective. To estimate p, the proportion of defective welds, how many welds must be inspected to have approximately 95% confidence that the maximum error of the estimate of p is 0.04?
Questions & Answers
QUESTION:
PROBLEM 13E
Out of 1000 welds that have been made on a tower, it is suspected that 15% are defective. To estimate p, the proportion of defective welds, how many welds must be inspected to have approximately 95% confidence that the maximum error of the estimate of p is 0.04?
ANSWER:
Step 1 of 5
Given: