Problem #4: Strategies for treating hypertensive patients by nonpharmacologic me

Question

Problem #4: Strategies for treating hypertensive patients by nonpharmacologic methods are compared by establishing three groups of hypertensive patients who receive the following types of nonpharmacologic therap;y Group 1: Patients receive counseling for weight reduction Group 2: Patients receive counseling for meditation Group 3: Patients receive no counseling at all The reduction in diastolic blood pressure is noted in these patients after a 1-month period and are given in the table below Group 1 Group 2 Group 3 4.5 2.2 2.3 4.2 4.2 3.4 1.2 -0.3 0.9 2.3 (a) What are the appropriate null and alternative hypotheses to test whether or not the mean reduction in diastolic blood pressure is the same for the three groups? (b) Find the values of SSTreatments and SSE. (c) What conclusion can you draw about the hypothesis test in (a)? Use = .01. (A) Ho : ,-Ma = 3, HA: Hj for all pairs (1.J) (B) Ho : 1 # 2# 3, HA: ,-Hj for all pairs (i,j) (E) Ho : 1 t u2113, HA: ,-j for at least one pair (W) Problem #4(a): Select$ | hypothesis tested Treatments, SSE (numbers correct to 4 decimals) Problem #4(b): (A) Do not reject Ho since 2.1585 s 12.4. (B) Do not reject Ho since 8.6339 s 9.55. (C) Do not reject Ho since 5.756 s9.55. (D) Do not reject Ho since 2.1585 s 9.55 (E) Do not reject Ho since 7.5547 s 9.55. (F) Do not reject Ho since 8.6339 s 12.4 (G) Do not reject Ho since 7.5547 s 12.4. (H) Do not reject Ho since 5.756 s 12.4 Problem #4(c): I select $) conclusion Just Save Submit Problem #4 for Grading

Explanation / Answer

applying onw way ANOVA on above data set:

problem 4a ) option C is correct

problem 4b) option E is correct

Source of Variation SS df MS F P-value F crit Between Groups 15.61 2.00 7.81 7.55 0.02 9.55 Within Groups 7.23 7.00 1.03 Total 22.85 9.00

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