The following are the laboratory results in hemoglobin of 10 male (X1) and 10 female(X2) patients. Test the null hypothesis that there is no significant difference between the hemoglobin of male and female patients. Use the t -test at 0.05 level of significance.   X1 14  18  17  16  4  14  12  10  9  17 X2 12   9   11  5  10  3  7  2  6  13   Null and Alternative Hypothesis Level of significance Critical value

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