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Online ProgramThe National Park System is calculating the average number of days that people camp at a park when they visit it. The park staff randomly sampled 300 at various parks and asked them how many days they camped. They found that the mean number of days was 5 with a standard deviation of 2.39. Given the table below that shows the common z-scores. Based on the analysis of this sample, what is the 95% confidence interval of the mean number of days that people camp in national parks?