Question

THE LAST QUESTION

( Exercise 3.1 nw Score: 11.67%, 2.33 of 2... Question Help Let Ybe a random variable. In a population, Hy = 131 and o = 56. Use the central limit theorem to answer the following questions. (Note: any intermediate results should be rounded to four decimal places) In a random sample of size n = 75, find Pr( < 133). Pr( <133) = 0.9896 (Round your response to four decimal places) In a random sample of size n = 169, find Pr(133 < Ý < 137). Pr(133< Ý < 137) = 0.0000 0 C (Round your response to four decimal places) In a random sample of size n = 92, find Pr(>132). Pr(> 132) = 0.8997 10 0 (Round your response to four decimal places) 0

Answer 1

we can find probability only by this method.

y = 131 2 اک Given that 56 na92 74833 Now PLY > 132) = 1 - PlÝ <132) by using centrou limit theorem y lly 132 - My by In 1-PE PE if XN(44, 6y) then TN (lly, our I 1-P 2 s 132-131 74833 / 9.59161 1- Plz 2 1 2 1:2817] 0.8991 From Statistical table O. 1003