A data set lists weights​ (lb) of plastic discarded by households. The highest weight is 5.37 ​lb, the mean of all of the weights is x=1.983 lb, and the standard deviation of the weights is s=1.849lb.   a. What is the difference between the weight of 5.37 lb and the mean of the​ weights? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the weight of 5.37 lb to a z score. d. If we consider weights that convert to z scores between −2and 2 to be neither significantly low nor significantly​ high, is the weight of 5.37lb​ significant?

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