Calculate the sample mean and sample standard deviation by using Minitab. To investigate on the number of accidents per week in a location we selected a sample of size 10 weeks and the number of accidents per week are counted and reported below. Data:3 4 5 0 1 0 2 3 1 1 a) Use formula and calculate a 99% confidence interval for the mean of the number of accidents per week in this location. b) What is the meaning of 99% confidence? c) List the conditions required for this confidence interval to be valid.

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