Conduct ANOVA with α=0.05 for this data and calculate the F-ratio and p-value. Round your answer to three decimal places. Assume all population and ANOVA requirements are met. F-ratio:  ____ p-value:  ____ Now, conduct a t-test with α=0.05 on the same data and calculate the t-statisitc and p-value. Round your answer to three decimal places. t-statistic:  ____ p-value:  ____ Observing the p-values, was there a difference in the result of the hypothesis test? (Select one):  Yes, the p-values are different enough to change the outcome of the test. No, the p-values aren't that far off where it would change the outcome of the test.

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"

Which statistical method can be considered as an extension of One-Way ANOVA to incorporate a "covariate"? a. two way ANOVA b. ANCOVA c. Normality Testing d. Covariance

Only round final answer to 2 decimal places.

Interpret this statistic. Why was gamma applicable here? Please show your work.

An analysis is conducted to compare mean time to pain relief (measured in minutes) under four competing treatment regimens. Summary statistics on the four treatments are shown below.    Complete the following ANOVA Table.           Source of Variation SS df MS F Between Groups         Within Groups 3719.48                 Total

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