8. you recorded the time in seconds it took for 8 participants to solve a puzzle. the times were: 15.2 .18.8,19.3,19.7,20.2,21.8,22.1,29.4 . a. find the mean b. find the median c. write the 5-number summary for this data find the standard deviation of this data
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.
someone help ! i need someone to explain this process step by step & how they got the numbers . by the way the whole question was
8. you recorded the time in seconds it took for 8 participants to solve a puzzle. the times were: 15.2 .18.8,19.3,19.7,20.2,21.8,22.1,29.4 . a. find the
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