Mathematics, 16.04.2020 00:41 kendrawalraven
Commuting. there are two routes he could take to work. Aneighbor who has lived there a long time tells him Route Awill average 5 minutes faster than Route B. The man decides to experiment. Each day he flips a coin to determine which way to go, driving each route 20 days. He finds that Route Atakes an average of 40 minutes, with stan- dard deviation 3 minutes, and Route B takes an average of 43 minutes, with standard deviation 2 minutes. His- tograms of travel times for the routes are roughly sym- metric and show no outliers. a. Find a 95% confidence interval for the difference in average commuting time for the two routes. b. Should the man believe the old-timer s claim that he can save an average of 5 minutes a day by always driving Route A
Answers: 2
Mathematics, 21.06.2019 21:00
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x โ 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, โ8) included in the solution area for the system? justify your answer mathematically. (4 points)
Answers: 3
Mathematics, 21.06.2019 21:00
A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building
Answers: 2
Commuting. there are two routes he could take to work. Aneighbor who has lived there a long time tel...
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