A food company testing a new method for the analysis of the polyunsaturated fat content of various vegetable and animal oils obtained the results in the table for the old and new methods. Use a paired Student's t-test to determine if the new and old analysis procedures are giving the same results at the 95% confidence level. You can assume that the precision is approximately the same for these two methods. Critical t values at various confidence intervals and degrees of freedom can be found in the Student's t table. tcalculated = 3.56 Incorrect Polyunsaturated Fat (% w/w of total fat) Sample Old New Number Method Method 1 4.5 3.9 2 35.8 34.8 3 7.2 6.7 4 66.2 63.3 5 17.7 16.1 6 8.2 6.6 7 47.1 44.2 8 27.7 23.2 tcritical = 2.365

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