4. A study was designed to measure the difference in diastolic blood pressure readings between men and women in the same age group. A B C D E F G H K 1 Men 76 76 74 70 80 68 90 70 06 72 2 16 men 76 80 68 72 96 80 3 Women 76 70 82 90 68 60 62 68 80 74 4 14 women 60 62 72 83 î1 = 77.375, T2 = 71.929, Male: n = 16, s1 = 8.350. %3D Female: n2 = 14, 82 9.4174. 2 s s n1 n2 = 3.270, n2 = 26.265. SE = DF = n-1 n2-1 (a) Estimate the 95% confidence interval of the difference of the diastolic blood pressure. Be sure to justify your solution both graphically and analytically.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.