moon = matrix(c(2,3,17,21,37,19,11,14,9,6), ncol=2,byrow=TRUE)
colnames(moon) <- c("Full", "Not")
rownames(moon) <-c("Violent", "Property", "Drugs", "Domestic", "Other")
moon <- as.table(moon)
addmargins(moon)
## Full Not Sum
## Violent 2 3 5
## Property 17 21 38
## Drugs 37 19 56
## Domestic 11 14 25
## Other 9 6 15
## Sum 76 63 139
prop.table(moon)
## Full Not
## Violent 0.01438849 0.02158273
## Property 0.12230216 0.15107914
## Drugs 0.26618705 0.13669065
## Domestic 0.07913669 0.10071942
## Other 0.06474820 0.04316547
chisq.test(moon)
## Warning in chisq.test(moon): Chi-squared approximation may be incorrect
##
## Pearson's Chi-squared test
##
## data: moon
## X-squared = 6.2052, df = 4, p-value = 0.1843
chisq.test(moon)$expected
## Warning in chisq.test(moon): Chi-squared approximation may be incorrect
## Full Not
## Violent 2.733813 2.266187
## Property 20.776978 17.223022
## Drugs 30.618705 25.381295
## Domestic 13.669065 11.330935
## Other 8.201439 6.798561
"a) independence test"
## [1] "a) independence test"
"b) Null is moon phase is independent of criminal behavior"
## [1] "b) Null is moon phase is independent of criminal behavior"
"c) chi-square prcoedure innacurate due to lack of data"
## [1] "c) chi-square prcoedure innacurate due to lack of data"
"#36"
## [1] "#36"
"a) put data in matrix with expected values"
## [1] "a) put data in matrix with expected values"
"b Ho: Moon is inpependent of criminal activity vs Ha: Ho is false:reject null because there is 0% cahance that amount of crimminal activity during full moon was due to random variation
"
## [1] "b Ho: Moon is inpependent of criminal activity vs Ha: Ho is false:reject null because there is 0% cahance that amount of crimminal activity during full moon was due to random variation\n\n"
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