SOLUTION: The estimate of the population proportion is to be within plus or minus 0.07, with a 90% level of confidence. The best estimate of the population proportion is 0.23. How large a sa

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Question 905857: The estimate of the population proportion is to be within plus or minus 0.07, with a 90% level of confidence. The best estimate of the population proportion is 0.23. How large a sample is required? (Use Student's t Distribution Table.) (Round up your answer to the next whole number.)

Sample size____________

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
ME = .07+=+1.645sqrt%28.23%2A.77%2F%28n%29%29
n = .23%2A.77%2F+%28.07%2F1.645%29%5E2 = 97.8 0r 98 (always round Up here)