# Business statistics chapter 2 exercise answers

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Q. A scientist wants to know how many times per hour a strand of bacteria reproduces. There is a mean of 6.3 reproductions and the standard deviation is 2.2. If a sample of 987 was used for the study, construct a 90% confidence interval for the true mean number of reproductions per hour for the bacteria. Round answers to one decimal place.Q. A scientist wants to know how many times per hour a strand of bacteria reproduces. There is a mean of 6.3 reproductions and the standard deviation is 2.2. If a sample of 987 was used for the study, construct a 90% confidence interval for the true mean number of reproductions per hour for the bacteria. Round answers to one decimal place.