Question 2: The following data are from matched samples based on the citations for speeding by Officer Constable and Officer Sergeant of the local police force for a recent five-month period. Sep Oct Dec 22 25 19 20 Officer Constable Officer Sergeant Aug 30 26 Nov 19 15 26 19 Using a=0.05 to test for a statistically significant difference between the population means for the two officers. What is the value of the test statistic? What is the p-value? What is your conclusion?

Use the following ANOVA table to answer the question. Source Regression Error Total MS SS 355.22 76.38 431.60 DF 177.61 7 10.91 What is the value of s?? O 177.61 10.91 76.38 335.05

Question 1. Greater than or Less than. Question 2. IS or IS NOT.

Consider the following research questions/study scenarios. For each study, discuss the most appropriate methods for describing the data (graphically and numerically).  What statistical method would be most appropriate for addressing the research questions?  Be sure to provide a justification of the statistical method.  What statistical test is needed, provide appropriate null and research hypotheses. An investigation of the association between drink preferences and the color of teeth is proposed. Subjects will be surveyed as to the type of drink most often consumed (coffee/tea. Juice, caramel-colored soda, water, or milk).  A clinical exam will be performed after dental cleaning to determine the color of the teeth (reddish brown, reddish yellow, gray, reddish gray).

#2...Can you write out answer please n thank u

Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"

Consider the following ANOVA table below. Some parts are blank intentionally. The number of observations is 249. Source Model (Regression) Residual (Error) Total The MSE is: SS 1,332 DF MS 921 Round your answer to two decimal places.

Refer to the below table. Using an alpha = 0.05, test the claim that IQ scores are the same for children in three different blood lead level groups: low lead level, medium lead level, and high lead level).   One-Way Analysis of Variance Summary Table for IQ Measurements for Children among Three Blood Lead Level Groups: Low Lead Level, Medium Lead Level, and High Lead Level. Source df SS MS F p             Between-group (treatment) 2   469.1827 2677.864 2.30 0.104 Within-group (error)       118    203.6918 11745.05     Total       120