Zinc is an essential micronutrient in pet food, but is toxic if present in excess. Do the
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Zinc is an essential micronutrient in pet food, but is toxic if present in excess. Do the znZn concentrations (mg/g)(mg/g) for the five cat foods and two dog foods determined by two methods differ significantly at the 95%95% confidence level?
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Old method: New faster method: Cat 1 84.984.9 86.236.2 Cat 2 73.573.5 81.881.8 Cat 3 173.0173.0 186.0186.0 Cat 4 62.762.7 73.473.4 Cat 5 154.01 54.0 138.01 38.0 Dog 1 80.180.1 72.572.5 Dog 2 185.0185.0 203.0203.0
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Quantitative Chemical Analysis
ISBN: 9781319164300
10th Edition
Authors: Daniel C. Harris, Charles A. Lucy
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