Question

Who ate the M&M’s? The following table gives the color counts and net weight (in grams) for a sample of 30 bags of M&M’s. The advertised net weight is 47.9 grams per bag.
There is something about one case in this dataset that is suspiciously inconsistent with the rest of the data. Find the inconsistency.
a. Construct two different graphs for the weights.
b. Calculate several numerical statistics for the weight data.
c. Did you find any potential inconsistencies in parts a and b? Explain.
d. Find the number of M&M’s in each bag.
e. Construct two different graphs for the number of M&M’s per bag.
f. Calculate several numerical statistics for the number of M&M’s per bag.
g. What inconsistency did you find in parts e and f? Explain.
h. Give a possible explanation as to why the inconsistency does not show up in the weight data but does show up in the number data.


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  • CreatedAugust 27, 2015
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