Question

hi can you please help me do the graph thanks

4) en blood pressure can reduce 0.009620.01 2) A researcher wishes to determine whether people with high blood pressure can redu their blood pressure by following a particular diet. Use the sample data below to test the Claim that the treatment population mean M1 is smaller than the control population mean 2. Test the claim using a significance level of 0.01. X1:1891 15 Treatment Group Control Group 3 11. 381 ni = 85 n2 = 75 nl: 85 x1 = 189.1 x2 = 203.7 72,203,7 $2 = 39.2 Sx 39,2 12:25 1) Cltimi ai ca ₂ -> CA se 3 or 4 2) Hoia = an 3) Hii a'l a? - lett than 40:-2.32 Start, Test, 6) 2 prop 2 test, FNze 50.0y Dt = 14 $1 = 38.7 A 6) Beject Ho -> Case 3 7) Sutriciend. evident to Beject the claim a.ca

Answer 1

Solution - The sample data are, n=85 72=75 X = 189.1 X = 203.7 S = 3817 S = 3.9.2 Neal Hypothesis (Hol! There is no significant difference bern treatment poph mean (el) and control pop mean (de) je Ho! l = 12 . Alternatie Hypothesis (H) : - There is significant difference beth treatment poph meanlei) and antrol popnean (42) je Hi! Meld (left taited! Test statistics : since the sample size are large the test statistics under Ho is thoil 189, 1- 203.7 1 (38.72 (39, 232 - 14.6 -1406 Goly31 1 17.6198 + 20.4885 = -2.3652 critical segion for a one failed test the critical value of z at 1% level of significance is 2.35 The critical region for left tailed test is z c -2.33 Conclusion - since calz (-2.3.650) is less than tab 2 (-2.... at 1.11.o.s. then we Reject Ho and conclude that treatment pop mean (4) is smaller than control pop means