17, of assembly time (in minutes) is approximately uniformly distrilbuted betwee

Question

17, of assembly time (in minutes) is approximately uniformly distrilbuted between6 to 12 minstes The 0.1334 16 732 Sampling distributions deribthedistribetion of b) statistics c)both parameters and statistics a) parameters. )neither parameters nor statistics When the confidence a. 0.05 b. 0.01 c. 0.10 d. not known. 19. 20. For a standard normal distribution, the probability ofs b. tero C.0.5 d. 21. Z is a standard normal random variable. The P(1.20sz s 1.85) equals 0.0829 0.3849 0,8527 b. C. d. Z is a standard normal random variable. The P(z a. 0.4821 b. 0.9826 0.4678 2.11) equals 22. 0.5 0.0174 d. Exhibit 3 The starting salaries of individuals with an MBA degree are normally distributed with a mean of $40,000 and a standard deviation of $5,000. What is the random variable in this experiment? Refer to Exhibit 3. a. the starting salaries b. the normal distribution C. $40,000 d. $5,000 23. 24. Refer to Exhibit 3. What is the probability that a randomly selected individual with an MBA degree will get a starting salary of at least $30,000? a. 0.4772 b. 0.0228 C. 0.9772 d. 0.5000

Explanation / Answer

17)

SD=( (B-A)^2/12)^1/2

= ((12-6)^2/12)^0.5

=(36/12)^0.5

=1.732

The correct option is (d)

18) The correct option is (b). We find the value of the parameters based on these statistics.

19) The correct answer is (0.05) (a)

20) The correct option is (c). For z>0 = z<0 =0.5

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