Approximately 95 of the sunflowers raised in the United States
Approximately 95% of the sunflowers raised in the United States are grown in the states of North Dakota, South Dakota, and Minnesot
a. To compare yield rates between North and South Dakota, 11 sunflower-producing counties were randomly selected from North Dakota and 14 sunflower-producing counties were randomly selected from South Dakot
a. Their 2008 yields, in pounds per acre, are recorded below.
Find the 95% confidence interval for the difference between the mean sunflower yield for all North Dakota sunflower-producing counties and the mean sunflower yield for all South Dakota sunflower-producing counties. Assume normality of yield rates.
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