Suppose samples of six different brands of diet or imitation margarine were analyzed to determine the level of physiologically active polyunsaturated fatty acids (PAPUFA, in percent), resulting in the data shown in the accompanying table. Imperial Parkay Blue Bonnet Chiffon Mazola Fleischmann's Parkay and Blue Bonnet Parkay and Chiffon Parkay and Mazola Parkay and Fleischmann's Blue Bonnet and Chiffon 14.1 13.6 14.5 14.3 (a) Test for differences among the true means for PAPUFA percentages among the different brands. Use a = 0.05. Calculate the test statistic. (Round your answer to two decimal places.) F = 69.93 Blue Bonnet and Mazola 12.8 12.5 13.5 13.0 12.3 Use technology to find the P-value. (Round your answer to four decimal places.) P-value 5.6542 X 13.5 13.4 14.1 14.4 What can you conclude? O Fail to reject Ho. There is not convincing evidence that the mean PAPUFA percentages for the six brands are not all equal. O Reject Ho. There is not convincing evidence that the mean PAPUFA percentages for the six brands are not all equal. Reject Ho. There is convincing evidence that the mean PAPUFA percentages for the six brands are not all equal. O Fail to reject Ho. There is convincing evidence that the mean PAPUFA percentages for the six brands are not all equal. Chiffon and Mazola 12.7 12.6 14 16.8 17.4 16.4 17.3 18.0 (b) Use the T-K procedure to calculate 95% simultaneous confidence intervals for all differences between means. (Round your answers to three decimal places.) Imperial and Parkay Imperial and Blue Bonnet Imperial and Chiffon Imperial and Mazola Imperial and Fleischmann's Chiffon and Fleischmann's 13.2 Mazola and Fleischmann's 18.1 17.2 18.9 18.4 Blue Bonnet and Fleischmann's 1.1 1.[ 0.0 0.0 1.1 1.1 1.[ 1.[ 0.0 7.0 1.[ 1.0

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