Below are the typing speeds (words per minute) for 22 secretarial applicants of an international cosmetic company 68 72 91 47 52 75 63 55 65 35 69 70 84 45 58 61 69 22 46 $5 66 71 1 Find the mean and the median of the data. 2 Calculate the outier interval for the data. Are there arny outlers? 3 Graph the distribution of typing speeds as a stemplot: (by hand) 4 Graph the distribution of typing speeds as a dotplot. (by hand) can you please help me in question 1- 4 by hand.
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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