The following are a sample of the weights of nine jars of peanut butter.
7.69 7.72 7.80 7.86 7.90 7.94 7.97 8.06 8.09
a) Compute the median weight.
b) Compute the standard deviation of the sample using the shortcut formula. Show the formula and values for each term and compute the answer. Use the TFE Equation Editor.
c) Compute the 5 Number System for this data. Just list the values as Xmin=xxx, Q1=xxx,Q2=xxxx,Q3=xxxxx, Xmax = xxxx.
d) Are there outliers? An outlier value is defined as unusually large or small according to the expressions: Answer yes or no.
Outlier > Q3 + 1.5(Q3-Q1) or,
Outlier < Q1-1.5(Q3-Q1)