Let X = the number of adult police contacts for a randomly selected individual who previously had at least one such contact prior to age 18. The following frequencies were calculated from information given in the article “Examining the Prevalence of Criminal Desistance” (Criminology, 2003: 423–448); our
x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
f | 1627 | 421 | 219 | 130 | 107 | 51 | 15 | 22 |
x | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
f | 8 | 14 | 5 | 8 | 5 | 0 | 3 | 2 |
- a. Is it plausible that the population distribution of number of contacts is Poisson? Carry out a chisquared test.
- b. The cited article did not even entertain the possibility of a Poisson distribution. Instead several other models were proposed. One of these is based on the idea that each individual’s number of contacts has a Poisson
distribution whose
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Chapter 14 Solutions
Student Solutions Manual for Devore's Probability and Statistics for Engineering and the Sciences, 9th
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill