Would the null hypothesis be accepted or rejected?Ĭan ANOVA be used to test proposed relationships or predicted correlations between variables in a single group? Provide a rationale for your answer. If F(3, 60) 4.13, p 0.04, and = 0.01, is the result statistically significant? Provide a rationale for your answer. If the researchers had set the level of significance or = 0.01, would the results of p 0.001 still be statistically significant? Provide a rationale for your answer. Was this result statistically significant, and if so at what probability? The researchers stated that the participants in the intervention group reported a reduction in mobility difficulty at week 12. Should the null hypothesis be rejected for the difference between the two groups in change in mobility scores over 12 weeks? Provide a rationale for your answer. State the null hypothesis for the Baird and Sands (2004) study that focuses on the effect of the GI with PMR treatment on patients’ mobility level. The researchers found a significant difference between the two groups (control and treatment) for change in mobility of the women with osteoarthritis (OA) over 12 weeks with the results of F(1, 22) 9.619, p 0.005. Is there sufficient evidence to support the claim that women in the different age categories have different mean blood pressure levels? Give reasons for your decision. Use the Excel Analysis ToolPak to create an Anova – Single Factor table. H1: at least one of the treatment means is different The values in the table are the systolic blood pressure levels The following table contains a random sample of 40 women partitioned into three groups: Duration of time until progression of the cancer is depicted below:ĩ.What type of graph is displayed in the figure above? (5 points)ġ0.What increment of time was displayed in the figure above? (5 points)ġ1.What is displayed on the Y axis (vertical axis) of this figure? (5 points)ġ2.At the beginning of the study (Month 0), how many patients had experienced progression?(5 points)ġ3.At what approximate month had 60% of patients in the radiotherapy only group NOT experienced progression?(5 points)ġ4.SYSTOLIC BLOOD PRESSURE IN DIFFERENT AGE GROUPS Participants were randomized to one of two groups: one group received treatment with radiotherapy only and the other group received treatment with both radiotherapy and weekly cetuximab.
#Module 4 anova excel worksheet answers trial#
They enrolled subjects in the study prospectively and documented whether their care was provided by a physician or a nurse practitioner and then they monitored the ED’s patient census for the following week and documented if the patients returned for care or not.ħ.Based on the study design, would an odds ratio or relative risk be the appropriate test statistic to use when analyzing their data? (5 points)Ĩ.Why was this test statistic appropriate? (5 points)įor Questions 9-14: A team of researchers conducted a randomized trial enrolling patients with locoregionally advanced head and neck cancer. (10 points)įor Questions 7-8: A team of emergency nurse practitioners conducted anepidemiological cohort studyto examine patients who returned to the emergency department within one week compared to patients who did not return to the emergency department within one week based on the patients’ clinical providers (physician versus nurse practitioner). The following charts detail the findings for each test.ġ.What was the sensitivity for Test “A”? (5 points)Ģ.What was the specificity for Test “A”? (5 points)ģ.What was the sensitivity for Test “B”? (5 points)Ĥ.What was the specificity for Test “B”? (5 points)ĥ.Should Test “A” or Test “B” be recommended for screening emergency department patients for HIV? (5 points)Ħ.Provide a rationale for your decision. A pilot study was conducted using two different rapid HIV tests. Instructions:Answer each item on this worksheet below and then upload this worksheet under the ASSIGNMENTS section in blackboard.įor Questions 1-6: An emergency department received a grant from the local public health department to offer rapid HIV testing for all patients 14-28 years old regardless the patients’ chief complaints. Purpose:You will be able to demonstrate a general understanding of interpreting statistical output to evaluate sensitivity and specificity, odds ratios, relative risks, and survival analysis. Sensitivity, Specificity, Odds Ratio, Relative Risks, and Survival Analysis