2. A chef timed 28 assistant chefs preparing pasta sauce. He found that the mean was...
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2. A chef timed 28 assistant chefs preparing pasta sauce. He found that the mean was 25 minutes. From the literature and his experience he knows o = 5.75 minutes. Calculate and interpret the 95% confidence interval for the mean. 2. A chef timed 28 assistant chefs preparing pasta sauce. He found that the mean was 25 minutes. From the literature and his experience he knows o = 5.75 minutes. Calculate and interpret the 95% confidence interval for the mean.
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