18. The manager of a computer repair service wants to determine whether there is a difference in the time it takes for four technicians to repair different brands of hard disk drives Th following table shows the times (in minutes) it took for each technician to repair three hard disk drives of each brand. Technician Brand Farah Rashid Chuan Zana A 67 82 64 42 56 39 69 47 38 70 44 50 B 44 62 55 47 58 62 55 45 66 47 29 40 C 47 36 68 39 74 51 74 80 70 45 62 59 Given that 3 3 4 3 43 = 3932289 x = 1315349 x = 989501 * = 337001 EE* =115611| %3D i=1 j=1 i=l j=l k=1 a. Complete the ANOVA table below. Source of Brand SS df MS F Technician Interaction Error 3277.33 Total 35 b. Since there is no interaction exists between the technicians and brands. At the a = 0.05 level of significance, test the effect on time taken for the technicians.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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