Researchers are conducting an experiment at a zoo tocompare the effect of two food supplements on weightgain among meerkats. The zoo has a large population ofmeerkats that live in 8 groups, each with separate livingareas. Researchers will randomly assigned four of theliving areas to receive each food supplement. What arethe experimental units in this study?A) the two supplementsB) the individual meerkatsC) the 8 groups of meerkatsD) the weight gain of each meerkatE) the mean weight gain for each of the 8 groups
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.
Researchers are conducting an experiment at a zoo to
compare the effect of two food supplements on weight
gain among meerkats. The zoo has a large population of
meerkats that live in 8 groups, each with separate living
areas. Researchers will randomly assigned four of the
living areas to receive each food supplement. What are
the experimental units in this study?
A) the two supplements
B) the individual meerkats
C) the 8 groups of meerkats
D) the weight gain of each meerkat
E) the mean weight gain for each of the 8 groups
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