Using the z(a) notation (identify the value of a used within the parentheses), name each of the standard normal variable z’s shown in the following diagrams.
Answer to relevant QuestionsUsing the z(a) notation (identify the value of a used within the parentheses), name each of the standard normal variable z’s shown in the following diagrams Use Table 4A, Appendix B, and the symmetry property of normal distributions to find the following values of z. a. z(0.05) b. z(0.01) c. z(0.025) d. z(0.975) e. z(0.98) Find the probability that a piece of data picked at random from a normal population will have a standard score (z) that lies to the left of the following z-values a. z = 2.10 b. z = 1.20 c. z = 3.26 d. z = 0.71 Find the normal approximation for the binomial probability P(x > 9), where n = 13 and p = 0.7. Compare this to the value of P(x > 9) obtained from Table 2. a. Use a computer to draw 200 random samples, each of size 10, from the normal probability distribution with mean 100 and standard deviation 20. b. Find the mean for each sample. c. Construct a frequency histogram of the ...
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