Strategies for treating hypertensive patients by nonpharmacologic methods are compared by establishing three groups of hypertensive patients...

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Strategies for treating hypertensive patients bynonpharmacologic methods are compared by establishing three groupsof hypertensive patients who receive the following types ofnonpharmacologic therapy:
Group 1:   Patients receive counseling forweight reduction
Group 2:   Patients receive counseling formeditation
Group 3:   Patients receive no counseling atall

The reduction in diastolic blood pressure is noted in thesepatients after a 1-month period and are given in the tablebelow.
Group 1 Group 2 Group 3
4.2 4.5 1.2
4.2 2.1 ?0.3
3.4 2.3 0.6
2.8
Using the data above, we want to use Fisher's LSD method totest the following hyptheses at the 1% significance level:

H₀?:??₁ =?₂  vs  H_A?:??₁? ?₂
H₀?:??₁ =?₃  vs  H_A?:??₁? ?₃
H₀?:??₂ =?₃  vs  H_A?:??₂? ?₃
(a) Find the value of LSD for each of the above three hypotheses(in the above order).
(b) Which pairs of means are significantly different (usingFisher's LSD test at the 1% significance level)?
(A) none of them (B) all ofthem (C) 1 and 2, 1 and 3 only(D) 1 and 2 only (E) 1 and 3 only(F) 1 and 2, 2 and 3 only (G) 2and 3 only (H) 1 and 3, 2 and 3 only

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3.9 Ratings (505 Votes)

AHere the ANOVA table is given belowAnova SingleFactorSUMMARYGroupsCountSumAverageVarianceGroup 1311839333330213333Group 238929666671773333Group 3443107517025ANOVASource of See Answer

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