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Mathematics, 18.03.2021 01:30 summer132

weeks) at which babies first crawl based on a survey of 12 mothers conducted by Essential Baby. 52 30 44 35 39 26 47 37 56 26 39 28 Source: www. essentialbaby (a) Draw a normal probability plot to determine if it is reasonable to conclude the data come from a population that is normally distributed. (b) Draw a boxplot to check for outliers. (c) Construct and interpret a 95% confidence interval for the mean age at which a baby first crawls.

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