A)In a class of applied statistics course, 60 students are sit for the final exam and hence their final scores are listed below, use these data to answer the questions below and show r work, your 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 6I 1) Set up a frequeney distribution table using 9 classes with the lowest starting at 10, 2) Find the mean and variance. 3) Find the median from the frequeney table. 4) Determine the mode using raw data. 5) Tind the value under which 60% of the data lalls below it. 6) Find the of data that falls above the value 60. percentage 7) Construet frequeney histogram that represents the data. 8) Constructa stem and lcaf chart 9) Construct a box plot
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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