Can someone please explain to me how the Fstat was found in this problem? throug
ID: 3321915 • Letter: C
Question
Can someone please explain to me how the Fstat was found in this problem? through excel, or however it is the number 13.47.
11.2.23-T BRAND EXPERT Six experts rated four brands of coffee in a taste-testing experiment A rating on a 7-point scale is given for each of four characteristics The data to the right displays the summated ratings. At the 0 05 level of significance, completely analyze the data to determine whether there is evidence of a dfference in the summated ratings of the four brands of coffee and, if so, which of the brands rated hghest 25 23 21 23 21 E3 28 21 E5 E6 23 23 Clck on the icon to view a partial table of critical values of the Studentized Range, Q Determine the null and alternative hypotheses, where 2 , and are the mean coffee atings for the four brands of coffee, Brand A Brand Brand C and Brand D espectively Choose the come t answer belo BH At least one mean is different H At least one mean is different Find the test statistic FSTAT 1347 (Round to two decimal places as needed.) Find the p-value. p-value 000 Round to three decimal places as needed) Is there evidence of a difference in the summated ratings of the four brands? O A. No Reject Ho and conclude that there is not evidence of a difference O B No Do not reject H) and conclude that there not evidence of a difference Question is complete. Tap on the red indicators to see incorrect answers 8:28 PM OType here to search 12/11/2017Explanation / Answer
Using minitab,
One-way ANOVA: A, B, C, D
Source DF SS MS F P
Factor 3 108.12 36.04 9.63 0.000
Error 20 74.83 3.74
Total 23 182.96
S = 1.934 R-Sq = 59.10% R-Sq(adj) = 52.96%
Individual 95% CIs For Mean Based on
Pooled StDev
Level N Mean StDev ---+---------+---------+---------+------
A 6 26.333 2.251 (-----*------)
B 6 21.000 2.280 (------*------)
C 6 22.000 1.673 (------*------)
D 6 21.500 1.378 (------*------)
---+---------+---------+---------+------
20.0 22.5 25.0 27.5
Pooled StDev = 1.934
F stat is coming 9.63. so p-value < 0.05 so we reject the null hypothesis.