The length, in words, of the essays written for a contest are normally distributed with a population standard deviation of 442 words and an unknown population mean. If a random sample of 24 essays is taken and results in a sample mean of 1330 words, find a 99% confidence interval for the population mean. Z0.10Z0.05Z0.025 Z0.0 Z0.005 1.282 .645 .960 2.326 2.576 You may use a calculator or the common z values above. Round the final answer to two decimal places, Sorry, that's incorrect. Try again? 0

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