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liberstina [14]
3 years ago
5

A recent study of food portion sizes reported that over a 17-year period, the average size of a soft drink consumed by Americans

aged 2 years and older increased from 13.1 ounces (oz) to 19.9 oz. The authors state that the difference is statistically significant with P < 0.01.† Explain what additional information you would need to compute a confidence interval for the increase, and outline the procedure that you would use for the computations.
Mathematics
1 answer:
TEA [102]3 years ago
4 0
We are given with
initial consumption = 13.1
consumption after 17 years = 19.9

P < 0.01

The additional information are needed to compute for the confidence interval for the increase are
the standard deviation for the initial consumption and the increased consumption
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