Determining z-score corresponding to a score

Reference no: EM1315214

Q1) Random sample of 1000 oranges illustrated that mean amount of juice per orange was 7 fluid ounces, with standard deviation of 1.6 fluid ounces. If z-score for particular orange was -1.5, how much juice was produced by this orange?

a) 5.5 fluid ounces

b) 8.5 fluid ounces

c) 4.6 fluid ounces

d) 9.4 fluid ounces

e) 7.1 fluid ounces

Q2) In certain normal distribution of scores, mean is 50 and standard deviation is 4. Determine z-score corresponding to a score of 55.

a) 12.50

b) 13.75

c) -1.25

d) 1.25

Q3) Last year, personal best high jumps of college athletes in close by state were normally distributed with mean of 214 centimetres and standard deviation of 14 centimetres. Determine the probability that one of athletes, randomly selected, has personal best between 214 and 228 centimetres?

a) 0.3413

b) 0.7513

c) 0.1313

d) 0.2413

Reference no: EM1315214

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