Botanists studying attrition among saplings in new growth areas of…

Question Answered step-by-step Botanists studying attrition among saplings in new growth areas of… Botanists studying attrition among saplings in new growth areas of forests diligently counted stems in six plots in five-year-old new growth areas, obtaining the following counts of stems per acre:9,432         11,026      10,539         8,773          9,868          10,247Construct an 80% confidence interval for the mean number of stems per acre in all five-year-old new growth areas of forests. Assume that the number of stems per acre is normally distributed. I understand everything so far except the standard deviation calculation for when it is unknown. I got the answer of 1,787 for standard deviation but other answers to this question online say that is incorrect and I would like to understand why and how to get the proper answer.  Math Statistics and Probability CPAN 123 Share QuestionEmailCopy link Comments (0)