For each testing problem following steps should be included in your solution

I.H₀ and H_A.

II.Copy and Paste the R output.

III.Decision: accept or reject H₀.

IV.Conclusion: In words interpretation of the decision that answers the starting question.

here are the r codes for each textbook problem mentioned in the questions:

Problem # 7.S.18

Infected<-c(16.4, 29.4, 37.1, 23.0, 24.1, 24.5, 16.4, 29.1, 36.7, 28.7, 30.2, 21.8, 37.1, 20.3, 28.3)

Uninfected<-c(22.2, 34.8, 42.1, 32.9, 26.4, 30.6, 32.9, 37.5, 18.4, 27.5, 45.5, 34.0, 45.5, 24.5, 28.7)

Problem # 8.2.2

Diet1<-c(596, 422, 524, 454, 538, 552, 478, 564, 556)

Diet2<-c(498, 460, 468, 458, 530, 482, 528, 598, 456)

Diff<-Diet1-Diet2

Diff

Problem 8.4.6

Northern<-c(0, 0, 0, 2, 0, 2, 1, 0)

Carolina<-c(9, 6, 22, 16, 17, 33, 24, 40)

Sign<-Carolina-Nothern

Number 1:

Consider the data in textbook problem 7.S.18. Do the data provide evidence that the infection is associated with decreased stamina? Investigate the question using =.05:

(a) t test

(b) Wilcoxon-Mann-Whitney test.

Number 2:

Consider the data in textbook problem section 8.2.2, page 317.Conduct an appropriate paired t-test to see if the diets affect the animals any differently in terms of weight gains.

Number 3:

Consider the data in textbook problem section 8.4.6, page 331. Consider a sign test using a non-directional alternative and compare the subspecies using =.05.