A data set consists of 2m2 − 1 zeros, one −m, and one m. a. Compute x and s for this data set. b. How many standard deviations from the mean is the observation m? c. Assuming that m ≥ 4, what percentage of the observations lie within three standard deviations to either side of the mean?
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.
A data set consists of 2m2 − 1 zeros, one −m, and one m.
a. Compute x and s for this data set.
b. How many standard deviations from the
c. Assuming that m ≥ 4, what percentage of the observations lie within three standard deviations to either side of the mean?
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