1. Random sample of size 4 are drawn from the finite population which consists of the numbers 2,3,7,8,and 10. a. What is the population mean, population variance and population standard deviation of the given data? b. What is the sampling distribution of the sample means for a sample of size 2 which can be drawn without replacement from the given population? c. What is the mean, variance and standard deviation of the sampling distribution?
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.
1. Random
numbers 2,3,7,8,and 10.
a. What is the population
of the given data?
b. What is the sampling distribution of the sample means for a sample of size 2 which can
be drawn without replacement from the given population?
c. What is the mean, variance and standard deviation of the sampling distribution?
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