A study of intraobserver variability in the assessment of cervical smears, 3,325 slides were screened for the presence or absence of abnormal squamous cells. Each slide was screened by a particular observer and then rescreened six months later by the same observer. The results are shown below. Test whether time of screening is related to the diagnosis. Was the observer more likely to detect squamous cells at one of the screenings? Use a 5% level of signicance. Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. You MUST show your work to receive full credit. Partial credit is available. Upload an image or pdf with your handwritten work. Refer to the instructions at the beginning of the quiz. If the instructions are not followed, you will receive a 0 for this question. s.econdsc.eemng A clinical trial is planned to compare an experimental medication designed to lower blood pressure to a placebo. Before starting the trial, a pilot study is conducted involving eight participants. The objective of the study is to assess how systolic blood pressure changes over time untreated. Systolic blood pressures are measured at baseline and again 4 weeks later Is there a statistically signicant difference in blood pressures over time? Run the test at a 5% level of signicance. Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. You MUST show all your work to receive full credit. Partial credit is available. Either 1. upload an image or pdf with your handwritten work or 2. upload an Excel le with your work in Excel. Refer to the instructions at the beginning of the quiz. If the instructions are not followed, you will receive a 0 for this