Question
In: Statistics and Probability
Suppose samples of six different brands of diet or imitation margarine were analyzed to determine the...
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 | 14.1 | 13.6 | 14.5 | 14.3 | |
|---|---|---|---|---|---|
| Parkay | 12.8 | 12.5 | 13.5 | 13.0 | 12.3 |
| Blue Bonnet | 13.5 | 13.4 | 14.1 | 14.4 | |
| Chiffon | 13.2 | 12.7 | 12.6 | 14.1 | |
| Mazola | 16.8 | 17.2 | 16.4 | 17.3 | 18.0 |
| Fleischmann's | 18.1 | 17.2 | 18.8 | 18.4 |
(a) Test for differences among the true average PAPUFA percentages for the different brands. Use α = 0.05. Calculate the test statistic. (Round your answer to two decimal places.)
F =
(b) Use the T-K procedure to compute 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 (____,_____)
Parkay and Blue Bonnet (____,_____)
Parkay and Chiffon (____,_____)
Parkay and Mazola (____,_____)
Parkay and Fleischmann's (____,_____)
Blue Bonnet and Chiffon (____,_____)
Blue Bonnet and Mazola (____,_____)
Blue Bonnet and Fleischmann's (____,_____)
Chiffon and Mazola (____,_____)
Chiffon and Fleischmann's (____,_____)
Mazola and Fleischmann's (____,_____)
Solutions
orchestra answered 2 years agoRelated Solutions
Suppose samples of six different brands of diet or imitation margarine were analyzed to determine the...
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 14.1 13.6
14.4 14.3 Parkay 12.8 12.5 13.5 13.0 12.3 Blue Bonnet 13.5 13.4
14.1 14.3 Chiffon 13.2 12.7 12.6 14.1 Mazola 16.8 17.3 16.4 17.3
18.0 Fleischmann's 18.1 17.2 18.7 18.4 (a) Test for differences
among the true average PAPUFA percentages for the...
P286 8-38 (Modified) (28pt) A particular brand of diet margarine was analyzed to determine the level...
P286 8-38 (Modified) (28pt)
A particular brand of diet margarine was analyzed to determine
the level of polyunsaturated fatty acid (in percentages). A sample
of six packages resulted in the following data: 16.8, 17.2, 17.4,
16.9, 16.5, 17.1.
g. Calculate a 95% two-sided confidence interval for the
standard deviation of the level of polyunsaturated fatty acid for
this particular brand of diet margarine.
h.Is your method used in part (g) justified? Why or why not?
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