Mathematics, 12.12.2019 04:31 iiAyeItzAsh5244
Motor vehicle accidents are rare events, but it is always better to have fewer. vehicle speed may be related to the number of accidents, and in general it is believed that slower speeds will lead to fewer accidents. on a stretch of highway 42, the average number of accidents per day was 0.23. a month ago, the speed limit was changed from 60 miles per hour to 50 miles per hour. in the one-month period following the change in the speed limit, three accidents were observed. explain in detail how you would test whether this is a significant decrease (3pts). include a description of your null and alternative hypotheses.
Answers: 3
Mathematics, 21.06.2019 16:30, inucornspineapple
Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.
Answers: 1
Motor vehicle accidents are rare events, but it is always better to have fewer. vehicle speed may be...
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