4.9: this is a normal distribution question:
Let's define: m=1000, S2 = 10000,
then the standard deviation is SD=SQRT(S2)=100
(a) by the formula: z = (X-m)/SD
z1 = (1200-1000)/100 = 2
from a z table, we find that Pr(z<2) = 0.9773

Some questions on normal distribution. ...Question 2: Before negotiating a long-term construction contract ... of a long-term contract based on the normal distribution. ...

Various Statistics Questions Using Normal Distribution. ... The solution gives detailed steps on solving various statistics questions using normal distribution. ...

... Answers Multiple choice questions on sampling, central limit theorem, normal distribution. Question 1 Multiple Choice All of the following are reasons to sample ...

...QUESTION 9 Normal distributions differ only in their means and variances. True. QUESTION 10 The height and width of a continuous uniform distribution's PDF are ...

... Answer: 0 Since the range is beyond the distribution. ... 9 Problems from which of the following binomial distributions can be worked by the normal curve because ...

... Many statistical tests assume normal distributions. Fortunately, these tests work very well even if the distribution is only approximately normal. ...

... follow a normal distribution, find the proportion of assistant professors who earn less than $ . Round your answer to at least four decimal places. Question #4 ...

... for which 94% of the standard normal distribution's area lies ... the following information to answer questions 17-19 ... Using your answer from question 17, what does ...

...Question 6. For Normal distribution with mean ? ... This solution shows you a step by step method on dealing with questions involving Standard Normal Distribution. ...