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What is the critical value?
To determine whether high blood pressure affected whether a person had a stroke, a sample of 121 people who had had strokes are examined. In the sample, 40% had high blood pressure. If we were to test the hypothesis that at least 33% of the people who have had strokes have had high blood pressure (using the 10% level of signficance) what is the critical value?
1 Answer
- ?Lv 78 years agoFavorite Answer
It is a case of One tailed / Right tailed test
The critical value of z at alpha = 10% applicable to one tailed test is + 1.2817