An important factor in selecting database software is the ti

An important factor in selecting database software is the time required for a user to learn how to use the system. To evaluate three potential brands (A, B and C) of database software, a company designed a test involving five different employees. To reduce variability due to differences among employees, each of the five employees is trained on each of the three different brands. The amount of time (in hours) needed to learn each of the three different brands is given below: Software Operator A B C 1 17 17 23 2 18 17 23 3 14 13 19 4 12 11 18 5 19 17 22 Mean 16 15 21 Below is the Excel output for the randomized block design: Source of Variation SS df MS F p-value F crit Rows Columns Error Total 84.66667 103.3333 3.333333 191.3333 4 2 8 14 21.16667 51.66667 0.416667 50.8 124 9.98E-06 9.54E-07 3.837853 4.45897 Referring to Scenario 11-8, what is the critical value of the randomized block F test for the difference in the means at a level of significance of 0.05?

Solution

hat is the critical value of the randomized block F test for the difference in the means at a level of significance of 0.05?

critical value for alpha = 0.05

df 1 = 2

df 2 = 4

critical value = 6.9443