Uji Beda Mean 2 Sampel.docx

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Uji beda mean 2 sampel (Uji T) 2. Untuk menurunkan tekanan darah pasien, perawat peneliti melakukan pengobatan. Apakah pengobatan efektif untuk menurunkan tekanan darah pasien pada alpha 5%. Hasil penelitian sbb: Pre: 175 179 165

170

162

180

177

178

140

176

Pos: 140 143 135

133

162

150

182

150

175

160

Jawaban : -

Uji kenormalan data One-Sample Kolmogorov-Smirnov Test sebelum sesudah pengobatan pengobatan N 10 10 a,b Normal Parameters Mean 170,20 153,00 Std. 12,218 16,553 Deviation Most Extreme Absolute ,253 ,172 Differences Positive ,211 ,172 Negative -,253 -,113 Test Statistic ,253 ,172 c Asymp. Sig. (2-tailed) ,070 ,200c,d a. Test distribution is Normal. b. Calculated from data. c. Lilliefors Significance Correction. d. This is a lower bound of the true significance. Data tersebut berdistribusi normal, maka dilakukan uji Paired sample T test dependen. T-Test Paired Samples Statistics Mean Pair 1

Pair 1

sebelum pengobatan sesudah pengobatan

170,20 153,00

N

Std. Deviation 10 10

Paired Samples Correlations N Correlation sebelum pengobatan & 10 -,333 sesudah pengobatan

12,218 16,553

Sig. ,347

Std. Error Mean 3,864 5,235

Kesimpulan : (p<0,05) sehingga pada uji statistik H0 ditolak : pengobatan ini efektif untuk menurunkan tekanan darah pasien.

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