The following data are the temperature of effluent at discharge from a sewage facility on consecutive days: 45 47 51 45 55 46 49 45 48 52 51 44 40 50 48 50 46 49 46 50 49 49 51 50 (a) Create an object named x that stores the data set. (b) Calculate the sample mean, sample median, sample variance, and sample standard deviation. (c) Find the 1st and 3rd quartiles. (d) Construct a box plot of the data. (e) Comment the output obtained in part (d). (f) Perform a suitable hypothesis testing to test whether the mean or median temperature is 48.

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