The humane society reports that of 428 animals at their local animal shelter, 376 are household pets and the remaining 52 are wildlife animals. Over the weekend, 29 of the household pets were adopted and 10 of the wild life animals were released back into the wild. Is there sufficient evidence to indicate a difference in the number of animals leaving the shelter over the weekend for the two types (household pets and wildlife animals)? use the p-value approach at the 1% level of significance.
H0 : p1 = p2
Ha: p1 not equals to p2
test statistics:
pcap = 29 +10/428
= 0.0911
p1 = 29/376 =0.0771
p2 = 10/52 = 0.1923
z = (p1 -p2)/sqrt(pcap*(1-pcap)*(1/n1+1/n2)
= (0.0771 - 0.1923)/sqrt(0.0911 *(1-0.09110/*(1/376 + 1/52))
= -2.7051
p value = .0068
Reject H0
The humane society reports that of 428 animals at their local animal shelter, 376 are household...
A humane society reports that 18% of all dogs were adopted from an animal shelter. Consider random samples of 90 dogs. What is the mean and standard deviation of the sampling distribution of dogs adopted from animal shelters if the humane society is correct?
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