In a random sample of 50 homeowners selected from a large suburban area, 19 said that they
Question:
a. Make a 99% confidence interval for the percentage of all homeowners in this suburban area who have such problems.
b. Suppose the confidence interval obtained in part a is too wide. How can the width of this interval be reduced? Discuss all possible alternatives. Which option is best?
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a n 50 p 1950 40 1 p 1 38 60 and s p p n 386250 06864401 The 99 confidence interval for p is p ...View the full answer
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