Mathematics, 17.01.2020 03:31 mcadoo6634
Here are the results of a regression of car deaths in the uk by month from jan 1969 to dec 1984 on a dummy variable: 0 = no seatbelt law, and 1 = seat belt law (the law was instituted in february 1983)coefficients: estimate std. error t value pr(> | t |) (intercept) 125.870 1.849 68.082 < 2e-16 *seatbelts -25.609 5.342 -4.794 3.29e-06 * r-squared = 0.11a. did the seat belt law make a difference? b. is there a need to add more variables to the model? c. how would you justify your answer with numbers? d. what possible independent / predictor variables could you add to this model?
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Mathematics, 21.06.2019 14:00
Arandom number generator is used to model the patterns of animals in the wild this type of study is called
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Mathematics, 21.06.2019 15:00
Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?
Answers: 3
Here are the results of a regression of car deaths in the uk by month from jan 1969 to dec 1984 on a...
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