Use the table below to find the percentage of data items in a normal distribution that lie a. below and b. above a z-scoreof 2.5z-scorez-score0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Percentile 53.98 57.93 61.79 65.54 69.15 72.57 75.80 78.81 81.59 84.131.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0Percentile 86.43 88.49 90.32 91.92 93.32 94.52 95.54 96.41 97.13 97.722.1 22 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0Percentile 98.21 98.61 98.93 99.18 99.38 99.53 99.65 99.74 99.81 99.87z-scorea. The percentage of data items that lie below the z-score is.b. The percentage of data items that lie above the 2-score is.

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Answered: Use the table below to find the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Find the proportion of Normally distributed observations with a z-score below 0.82. Give your answer to four decimal places. Find the proportion of Normally distributed observations with a z-score above -2.84. Give your answer to four decimal places. Find the proportion of N.d. observations with a z-score between z1= -2.58 and z2= 3.18. Give your answer to four decimal places.
A- Discuss the differences between the (t) test of the mean and the standard normal distribution? B- Find the skewness and discuss your results after draw the histogram for the data listed below and check its shape: 1,2,3,8,8,9,10,11, 15,16,17,18.
Use the Standard Normal Table to determine the z-score that corresponds to the 33rd percentile A) -0.44 b.-0.33 C. 0.33 d.0.44 Draw a graph
The table below shows the frequency distribution of the rainfall on 52 consecutive Wednesdays in a certain city. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately normal? Class 0-0.19 0.20 -0.39 0.40 -0.59 0.60 -0.79 0.80 -0.99 1.00-1.19 1.20 - 1.39 Frequency 21 10 6 3 7 4 1 Choose the correct histogram below. O A. O B. O C. 30- 20 10- 0- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 104 0-F 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30 20- 10- 0- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Q Q Q G Q Q M
Use the standard normal distribution table. The percent of the total area between Z=0.75 and Z= 1.6 is ?
Draw a normal curve with µ= 70 and o = 19. Label the mean and the inflection points. ..... Choose the correct graph of the normal curve below. A. В. OC. 51 70 89 70 89 108 32 51 70
Use the table below to find the percentage of data items in a normal distribution that lie a. below and b. above a z-score of negative 1.00 −1.00.
Use the standard normal distribution table to determine the percent of data between z=1.04 and z=1.32. The percent of data between z=1.04 and z=1.32 is
The table below shows the frequency distribution of the rainfall on 52 consecutive Tuesdays in a certain city. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately normal? Class 0-0.19 0.20 -0.39 0.40 -0.59 0.60-0.79 0.80 -0.99 1.00-1.19 1.20-1.39 Frequency 22 13 4 1 5 6 1 Choose the correct histogram below. OA. OB. O C. 30- 20- 10- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Q Q Q Do the data appear to have a distribution that is approximately normal? O A. No, it is approximately uniform. OB. No, it is not symmetric. OC. No, it has no obvious maximum. O D. Yes, it is approximately normal.

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