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Answer to Question #34413 in Statistics and Probability for sheril
Question #34413
Suppose a baker claims that the mean time to prepare a cake is at most 360 minutes. A sample of 25 bakers in randomly selected and it is found that the mean time taken by them to prepare a cake was 270 minutes. Assume also that standard deviation is known to be 120 minutes. Assuming the time to prepare a cake is normally distributed and using a 0.05 level of significance, would you conclude the baker’s claim is true?
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