pls help verify answers.

Questions 3 -5 (3 points each): For each set of hypotheses, indicate the matching distribution needed to compute the p-value of the test 3. Assume o is known Ho: 1 = #2 HA: 1 # #2 A. z-distribution B. t-distribution C. Chi-square distribution D. F distribution Answer: 4. Assume o is unknown Ho: 1 = /2 HA: 1 * #2 A. z-distribution B. t-distribution C. Chi-square distribution D. F distribution Answer: 5. Assume 01 = 02 = 03 Ho: H1 = #2 = M3 HA: At least two population means are different. A. z-distribution B. t-distribution C. Chi-square distribution D. F distribution Answer: Questions 6-10 (3 points each): Use the following scenario to answer the questions. A manufacturer of videogame cartridges performs an experiment to compare the average time of three assembly methods. The goal of this analysis is to see whether these methods differ in average time to assemble the cartridge. Use the output provided to answer the following questions. Comparison of Methods for Assembly Time of Sum Sq Mean Sq F value Pr(>F) Method 121. 1 60. 53 16.4 2. 37e-06 Residuals 57 210.4 3. 69 Method A Method B Method C diff Twr upr p adj Methods-MethodA -2.221779 -3. 683946 -0. 7596126 0. 0015977 Methodc-MethodA 1. 208065 -0. 254102 2. 6702318 0. 1243524 Methodc-Methods 3. 429844 1. 967677 4. 8920113 0. 0000016 15 16 17 18 19 0 21 22 23 24 Time in Seconds 6. Based on the side-by-side boxplot, which statement is a FALSE description of the data? A. Method B is typically the fastest. B. Method C is typically the slowest. C. Method A the most variability of the methods. D. No method took longer than 17 seconds to produce a single cartridge. Answer: 7. From the Single-Factor ANOVA table, which value represents the average between group variation? A. 2.37e-06 B. 3.69 C. 16.4 D. 60.53 Answer: 8. The F statistic and p-value from the Single-Factor ANOVA table represent a null hypothesis of: A. Ho: B1 = B2 = B3 = 0 B. Ho: X1 = X2 = X3 C. Ho: H1 = #2 = /3 D. Ho: H1 = /2 = /3 = 0 Answer: 9. Based on the F test statistic and p-value from the Single-Factor ANOVA table, what can we conclude? A. There is convincing evidence the average assembly times of at least two methods are different. B. There is no evidence which suggests the average assembly times for the different methods are different. C. The F test statistic comes from an F distribution of 3 and 60 degrees of freedom. D. The test is not valid since Method B contains an outlier. Answer: 10. Based on the output from the multiple comparisons procedure, which statement is FALSE (Assume a = 0.05)? A. There is a significant difference between methods A and B. B. Method A has smaller mean than Method B. C. The 95% F-W confidence interval estimates Method B is approximately 1.97 to 4.89 seconds faster than Method C. D. Method B has the fastest average assembly time in comparison to the other groups. Answer: