Z 0.00 0.02 0.05 -3.9 000005 0.00005 0.00004 0.00004 3.8 0.00007 0.00007 0.00007 0.00006 0.00006 0.00011 0.00010 0.00010 0.00010 0.00009 -3.7 3.4 0.00016 0.00015 0.00015 0.00014 0.00014 0.00013 -3.5 000023 0.00022 0.00022 0.00021 0.00020 0.00019 0.00032 0.00031 0.00000 0.00029 0.00028 0.00047 0.00045 0.00043 0.00006 0.00064 0.00062 0.00042 0.00040 0.00060 0.00055 3.4 0.00034 3.3 0.00045 3.2 0.00069 0.00097 3.1 3.0 000135 0.00131 0.00126 0.00122 -2.9 0.00094 0.00090 0.00087 0.0004 0.00082 0.00118 0.00114 0,00181 0.00175 0.00169 0.00159 000157 0.00256 -2.5 0.00219 -2.7 0.00347 0.0024 0.00240 0.00233 0.00336 0.00326 0.00317 0.00453 0.00440 0.00427 0.00415 0.0029 2.6 0.00466 0.00402 -2.5 0.00004 0.00187 0.00570 0.00554 000539 0.00798 0.00776 0.00734 0.00714 2.4 23 0.00964 0.00939 0.00820 0.01072 0.01044 0.01017 -2.2 0.01390 0.01355 0.01321 0.01287 0.01255 21 0.01786 0.01743 0.01700 0.01659 -2.0 0.02275 0.02222 0.02169 0.01222 0.02118 100 129000 a. 2. Explain the following notation: a. For P(x<12) 0.04 0.05 0.00004 000004 0.00755 0.00990 0.00164 0.00226 0.00307 0.01618 0.02068 P(Z<-1.5) 900000 600000 0.01578 0.02018 3. What is the Z-score? Explain in terms of having a Z-score of -.8 with a mean of 32.
4. The grades on the MET 2301 midterm at KSU are roughly symmetric with u=76 and a = 4.5. An inquisitive student wants to know the probability of scoring an 80. a. Calculate the Z-score for scoring 80. b. What is the probability of scoring 90 or higher? 5. Which normal distribution curve best suits the average steam pressure data? μ = 125 psi, a = 10 psi 125 135 145 155 165 175 185 A M b. 95 105 115 125 135 145 155 a. C. 80 95 119 125 140 155 170
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