Question
1. Suppose {Xn, n 1} is a sequence of random variables with X~ Binomial(n, pn) such that np.1 >0 as n . Show that as
1. Suppose {Xn, n 1} is a sequence of random variables with X~ Binomial(n, pn) such that np.1 >0 as n . Show that as n ,P(X= k) e-11 k k! for k= 0, 1, 2,...2. A Poisson GLM is used to model the annual number of polititians switching political parties in the USA during 1802-1876.(a) Explain why a Poisson GLM is approporiate to model the data.(b) Eleven explanatory variables are used in the linear predictor, one of which is whether or not the year is a non-election year, denoted as non-elect (non-elect=1 if non-election year, 0 if election year). The estimated coefficient of non-elect is 1.051. Interpret the meaning of this coefficient.(c) The estimated standard error for the estimated coefficient of non-elect is 0.320. Is non-elect statistically significant?(d) Obtain a 90% confidence interval of the coefficient of non-elect.
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