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The data below are yields for two different types of corn seed that were used on adjacent plots of land. Assume that the data are
The data below are yields for two different types of corn seed that were used on adjacent plots of land. Assume that the data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the difference between type 1 and type 2 yields. What does the confidence interval suggest about farmer Joe's claim that type 1 seed is better than type 2 seed? Type 1 2006 1983 2126 2594 2113 1874 2225 1497 Type 2 2013 1912 2051 2477 2143 1914 2148 1497 In this example, ud is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the type 1 seed yield minus the type 2 seed yield. The 95% confidence interval is
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