Use the following information to answer questions 13-21 The following data consist of weights in ounces of three types of digital cameras (assume the weights are normally distributed). Cannon Minolta Nikon 6 14 19 8 11 27 7 15 21 4 17 24 10 33 13. To test whether the mean weights of the three types of cameras are equal, the test statistic that will be calculated is nearly: A. 23.9 B. 2.39 C. 30.7 14. 15. Comparing the probability of obtaining a test statistic as extreme or more extreme than that calculated in part 13 to a level of significance of 0.01, it can be concluded that: A. The mean weights are equal B. The mean weights are not equal C. No conclusions can be drawn The degrees of freedom used to calculate the mean sum square of treatment is: A. 2 B. 3 4 16. The mean sum square of treatment is; A. 277.7 17. 886.33 C. 422.87 B. The contribution of Nikon camera in the calculation of the Sum Square of Treatment is: A. 277.7 B. 487 C. 443.17 18. The degrees of freedom used to calculate the mean sum square of error is: A. 12 B. 16 C. 17 19. The contribution of Cannon camera in the calculation of the Sum Square of Error is: A. 12.35 20. B. 123,5 C. 11.2 The 99% T-K confidence interval for the difference in the mean wights of Cannon and Nikon cameras is and it can be concluded that the weight of Canon camera is than that of Nikon 20. The 99% T-K confidence interval for the difference in the mean wights of Cannon and Nikon cameras is concluded that the weight of Canon camera is camera and it can be than that of Nikon A. (9.8, 26.6) and heavier B. (8.67, 26.2) and lighter c. (-26.6, -9.8) and lighter