anonymous
  • anonymous
A random sample of 50-year-olds attending day care centers provided a yearly tuition average of $3987 and the population standard deviation of $630. Find the 90% confidence interval of the true mean. If a day care center were starting up and wanted to keep tuition low, what would be a reasonable amount to charge. I think I know the answer, I just need to clear any doubts. My answer [3840.44, 4133.56] is this correct?
Statistics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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