Question: The data shown below represent the age (in weeks) at which babies first crawl, based on a survey of 12mothers. Complete parts (a) through (c)

The data shown below represent the age (in weeks) at which babies first crawl, based on a survey of 12mothers. Complete parts (a) through (c) below.

the table of critical correlation coefficient values for normal probability plots is below

52 47 47 30 37 54 44 56 28 35 26 52

(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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