A sample of 91 objects had the following results: ¯xx¯ = 189 The median = 191 SS = 3. Suppose 10 was added to each of the numbers in the dataset. What is the ¯xx¯ of the resulting dataset? What is the median of the resulting dataset? What is the SS of the resulting dataset? What is the S2S2 of the resulting dataset?
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 sample of 91 objects had the following results:
¯xx¯ = 189
The
SS = 3.
Suppose 10 was added to each of the numbers in the dataset.
What is the ¯xx¯ of the resulting dataset?
What is the median of the resulting dataset?
What is the SS of the resulting dataset?
What is the S2S2 of the resulting dataset?
It is given that the sample mean is 189, median is 191 and S =3.
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