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

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Basic Math

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 1Group 2Group 3
4.24.51.2
4.22.1?0.3
3.42.30.6

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  HA?:??1? ?2
H0?:??1 =?3  vs  HA?:??1? ?3
H0?:??2 =?3  vs  HA?:??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

Answer & Explanation Solved by verified expert
3.9 Ratings (505 Votes)
AHere the ANOVA table is given belowAnova SingleFactorSUMMARYGroupsCountSumAverageVarianceGroup 1311839333330213333Group 238929666671773333Group 3443107517025ANOVASource of    See Answer
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