Question

The superintendent of a large school district, having once had a course in probability and statistics, believes that the number of teachers absent on any given day has a Poisson distribution with parameter u. Use the accompanying data on absences for 50 days to obtain a 95% large-sample CI for Number of absences 1 2 3 4 5 6 7 89 10 Frequency 23 8 10 976211 has approximately a standard normal distribution. No answers to two decimal places.) proceed as in the derivation of the interval for p by making a probability statement with probability 1 a and so ing the resul ng inequalities for μ Round your (337X ,447X) X4.47

Answer 1

씌 It is given that, X -lu u in 2 - う乢=+ an = 3,94 ス"Y2-1, 96 2 XtZg/1, ±ーイ(L.JYFr +マス12- an 394+1)+1.90 = 3.74+0.0 384,6 ± o. SS 3.4268 , 4.52995 3.43 , 4.53