For items 25 to 26: A farmer has decided to use a new additive to grow his crops. He divided his farm into 10 plots and kept records of the corn yield (in bushels) before and after using the additive. The results are shown below. VITA PLOT 1 2 3 4 8. 9. 10 BEFORE 9 6. 8. 7. 6. 8. 9. 10 11 AFTER 10 9. 9. 8. 7 10 6. 10 10 12 You wish to test the following hypothesis at the 10 percent level of significance. Ho: Hp =0 vs HA: uD # 0. 25. What is the value of the appropriate test statistic? C. 2.033 A. 2.536 B. 5.014 D. 1.584 26. What can you conclude about the new additive? A. There is enough evidence that the additive is not effective in growing corns. B. There is no difference between the yield of corn before and after applying the additive. C. There is not enough evidence that the additive is effective in growing corn. D. The additive has increased the yield of corn.
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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