The following data show the number of hours spent watching television for 10 randomly selected freshmen attending a liberal arts college in the Midwest Hours of Television Viewed Weekly 18 14 15 17 11 13 11 12 15 12 0 Calculate the range, variance, standard deviation, and interquartile range for the sample data. The range for the data set is. Type an integer or a decimal. Do not round.) The sample variance, s, is. Round to two decimal places as needed.) The sample standard deviation, s, is. Round to two decimal places as needed.) The interquartile range for the data set is Type an integer or a decimal. Do not round.)
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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