Use the confidence level and sample data to find the margin of error e. round your answer to the same number of decimal places as the sample mean unless otherwise noted.
soulistic blood pressures for women aged 18-24: 94% confidence, n=92, x= 112.1 mm hg, standard deviation=13.5 mm hg
a)2.6 mm hg
b)2.3 mm hg
c)47.1 mm hg
d)2.2 mm hg

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?