Nine experts rated two brands of coffee in ataste-testing experiment. A rating on a7-point scale

(1equals=extremely unpleasing, 7equals=extremely pleasing) is given for each of fourcharacteristics: taste,aroma, richness, and acidity. The accompanying data table contains the ratings accumulated over all four characteristics. Complete parts(a) through(d) below.

ExpertBrand A Brand B

C.C.2627

S.E.2525

E.G.1922

B.I.2122

C.M.2223

C.N.2627

G.N.2524

R.M.2426

P.V.2223

The test statistic is tSTATequals=.

(integer or a decimal. Round to two decimal places asneeded.)