I have already solved this equation on my own, but I would like to compare your answers with mine. Please let me know what you got for every part of the included photo.

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 2038 1905 2004 2513 2178 2028 2190 1485 Type 2 2072 1927 2024 2427 2173 1922 2183 1468 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