You are performing a study about weekly per capita milk consumption. A previous study found weekly per capita milk consumption to be normally distributed, with a mean of 43.9 fluid ounces and a standard deviation of 10.8 fluid ounces. You randomly sample 30 people and record the weekly milk consumptions shown below. 34, 53, 30, 37, 39, 45, 27, 62, 33, 45, 41, 24, 37, 53, 40, 39, 39, 45, 46, 45, 33, 30, 21, 39, 61, 41, 47, 39, 53, 34 a) Using seven classes, draw a frequency histogram to display these data. b) Find the mean of your sample. Find the standard deviation of your sample. c) Compare the mean and standard deviation of your sample with those of the previous study. Discuss the differences.
You are performing a study about weekly per capita milk consumption. A previous study found weekly per capita milk consumption to be normally distributed, with a
34, 53, 30, 37, 39, 45, 27, 62, 33, 45, 41, 24, 37, 53, 40, 39, 39, 45, 46, 45, 33, 30, 21, 39, 61, 41, 47, 39, 53, 34
a) Using seven classes, draw a frequency histogram to display these data.
b) Find the mean of your sample. Find the standard deviation of your sample.
c) Compare the mean and standard deviation of your sample with those of the previous study. Discuss the differences.
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