Answer
$Q_1=5.58~grams$
$Q_2=5.60~grams$
$Q_3=5.6625~grams$
25% of the quarters have a weight $\leq5.58~grams$ and 75% have a weight $\gt5.58~grams$
50% of the quarters have a weight $\leq5.60~grams$ and 50% have a weight $\gt5.60~grams$
75% of the quarters have a weight $\leq5.6625~grams$ and 25% have a weight $\gt5.6625~grams$
Outlier: 5.84 grams
Work Step by Step
In MINITAB, enter the weights in C1.
Select Stats -> Basic Stas -> Display Descriptive Statistics
In Variables enter C1 and click in Statistics.
Select "First quartile", "Median", "Third quartile" and "Interquartile range". Click OK.
Click Ok.
$Q_1=5.58$, $Q_2=median=5.60$, $Q_3=5.6625$ and $IQR=0.0825$
$Lower~Fence=Q_1-1.5(IQR)=5.58-1.5\times0.0825=5.45625$
$Upper~Fence=Q_3+1.5(IQR)=5.6625+1.5\times0.0825=5.78625$
There is no value less than 5.45625. But, there is 1 value above 5.70375: 5.84
