I need help figuring out correct formulas for these problems.

An experiment is designed to compare five different advertisements for a pen. A sample of 30 adult respondents is randomly assigned to the five advertisements. After reading theadvertisement, all respondents unknowingly receive the same pen to evaluate and are then asked to rate the pen from 1 to 7(lowest tohighest) on three characteristics. The combined scores of these three ratings for the 30 respondents are provided in the data table. Complete parts(a) through(c).

A: 17 17 18 21 19 21

B: 18 18 20 14 19 18

C: 10 6 8 17 12 13

D: 4 7 11 10 9 11

E: 12 17 16 13 19 13

At the 0.05 level ofsignificance, is there evidence of a difference in the mean rating of the pens following exposure to five advertisements?

Determine the hypotheses. Choose the correct choice below.

A.

H0: 1=2==5

H1: Not all the means are equal.

B.

H0: 1=2==5

H1: 125

C.

H0: 1=2==6

H1: 126

D.

H0: 1=2==6

H1: Not all the means are equal.

b. Determine thep-value.

p-value=

(Round to three decimal places asneeded.)

c. Reach a decision.

(Reject OR Do not reject) H0. There is (sufficient OR insufficient) evidence at the 0.05 level of significance to conclude that there is a difference in the mean rating of the pens following exposure to five advertisements.