Let x represent the average miles per galion of gasoline that owners get from th

Question

Let x represent the average miles per galion of gasoline that owners get from their new Nippon Model automobile. For this model car the mean of the x distribution is advertised to be mpg, with standard deviation o-6 mpg. Convert each of the following x intervals to standard z intervals: (a.) x 2 46 (b.) 40 Sxs 50 (c) x 49 Convert each of the following z intervals to raw score x intervals: (a.) z 2-1 (b.) 0szs 2 (c.) zs2 2. (10 points) Jim scored 630 in a national banker's examination in which the mean is 660 and the standard deviation is 70. June sco mean is 500 and the standard deviation is 25. If Jim and June both apply for a job at Hoopie State Bank and each examination has equal weight toward getting the job at Hoopie State Bank, who hs the better chance? Explain your answer red 530 on the Hoopie College banker's examination for which the

Explanation / Answer

a)

z >= 0.333

b)

-0.6667 <= z <= 1

c)

z <= 0.8333

a)

x >= 38

b)

44 <= x <= 56

c)

x<= 56

xbar mu sigma z=(xbar - mu)/sigma 46 44 6 0.333333333 40 44 6 -0.666666667 50 44 6 1 49 44 6 0.833333333

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