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Problem 5. Two companies manufacture a rubber material intended for use in an automotive application. The part will be subjected to abrasive wear in the field application, so we decide to compare the material produced by each company in a test. Twenty-five samples of material from each company are tested in an abrasion test, and the amount of wear after 1000 cycles is observed. For company 1, the sample mean x1 = 23 and standard deviation of wear are milligrams/1000 cycles and si = 2 milligrams/1000 cycles, while for company 2 we obtain x2 = 15 milligrams/1000 cycles and s2 = 8 milligrams/ 1000 cycles. test the hypothesis H0 calculate t0

Question 41 pts Which of the following smoothing constants would make an exponential smoothing forecast equivalent to a naive forecast? Note that, naive forecast means the last period's actual observation is used as this period's forecast, without adjusting them or attempting to establish causal factors. Group of answer choices 0 0.5 1 divided by the number of periods 1

4. Write the mechanisms for the following reactions and what type is it? a.

Prior to insertion, the trach tube should be tested for proper insufflation. True False

does decreasing concentration of ions at anode increase cell potential?

The curves show the marginal cost (MC), average variable cost (AVC), and average total cost (ATC) functions for a firm in a competitive market. Using the straight-line tool, draw a line all the way from the left edge of the graph to the right edge, to represent the market price at which the firm, by managing its operation carefully, can break even but cannot make a profit. To refer to the graphing tutorial for this question type, please click here.

The slope of a ray from the origin to a point on the total cost curve is the Multiple Choice average total cost of producing the corresponding level of output. variable cost of producing the corresponding level of output. average fixed cost of producing the corresponding level of Proy 26 of 30 Next

Part A Label the steps of phagocytosis Drag the appropriate labels to their respective tergets.

Leon, a child with conduct disorder, takes small objects that that are not his (e.g. a toy, a crayon, a yogurt cup) from his fellow students. However, when confronted by another child, Leon will cry rather than argue with the child or threaten her. Which negative mood symptom might prevent his conduct problem from seguing into fighting or lying? a. Anxiety b. Internalizing c. Depression d. Passive–aggressive behavior

Figura A Figura B Para la figura A: Calcule la capacitancia equivatente entre b y c y entre a y c. (Valor 20ptos) Para la figura B: scan

y Vab

. Calcule la carga en cada capacitor y la diferencia de potencial a traves de cada capacitor. (Valor 20ptos)