BE SURE TO USE A TI 84 GRAPHING CALCULATOR FOR ALL ANSWERS. SHOW ALL STEPS USED ON GRAPHING CALCULATOR. Conduct a hypothesis test showing all of your steps. A medical researcher is comparing a person’s systolic blood pressure (measured in mmHg) in the left arm versus the right arm. The following are measurements collected from seven subjects in both arms. At a 1% significance level, can the researcher claim the systolic blood pressure in a person’s right arm is lower than their left arm? Left Arm 175 169 182 146 144 128 159 Right Arm 102 103 99 88 96 113 106 a) State the hypotheses and label the claim. b) Is the test left-tailed, right-tailed, or two-tailed (circle one)? c) What is/are the critical value(s)? Draw a picture. d) What is the P-value and test-statistic? e) Find d and sd , round to tenths. f) State the conclusion. Give two reasons for your decision to reject/not reject H0 based on: A. Test statistic compared to critical value  B. P-value compared to α Then, relate back to the original claim.

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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.