a. What is the experimental unit in this experiment? b. What are the population and sample in this experiment? c. What are the parameters considered in this experiment? d. What are the statistics in this experiment?
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 researcher is interested in finding the
mean andmedian lengths of all walleye in a lake. A Sample of 300 walleye was caught and their lengths were recorded. The sample mean and median lengths were found to be 28 inches and 33 inches.
a. What is the experimental unit in this experiment?
b. What are the population and sample in this experiment?
c. What are the parameters considered in this experiment?
d. What are the statistics in this experiment?
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