Student Solutions Manual Applied Statistics and Probability for Engineers, Fifth Edition

CHAPTER 7

Section 7-2

7-1.        The proportion of arrivals for chest pain is 8 among 103 total arrivals. The proportion = 8/103

7-3.      

7-5.      

7-7.      Assuming a normal distribution,

7-9              σ² =25

7-11.            n =36

Using the central limit theorem:                               = P(0.7348 < Z < 3.6742)                                = P(Z < 3.6742) − P(Z < 0.7348)                               = 1 − 0.7688 = 0.2312

7-13.    

a)    

b)    

7-15.    Assume approximate normal distributions.    

Section 7-3

7-17.    a)   

   b)   Estimate of mean of population = sample mean ...