Problem 1. # 7.2.5. In a study of the nutritional requirements of cattle, researchers measured the weight gains of cows during a 78-day period. For two breeds of cows, Hereford (HH) and Brown Swiss/Hereford (HS), the results are summarized in the table below. Use a t-test to compare the means using a significance level a = 10%. HH HS 33 51 18.3 13.9 117.8 19.1

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