he following table gives the mean and standard deviation of reaction times (in seconds) for each of two different stimuli. Stimulus 1 Stimulus 2 Mean 6.0 3.4 Standard Deviation 1.2 0.8 If your reaction time is 4.2 seconds for the first stimulus and 1.8 seconds for the second stimulus, to which stimulus are you reacting relatively more quickly (compared to other individuals)? first stimulus second stimulus
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.
he following table gives the
Stimulus 1
Stimulus 2
Mean
6.0
3.4
Standard Deviation
1.2
0.8
If your reaction time is 4.2 seconds for the first stimulus and 1.8 seconds for the second stimulus, to which stimulus are you reacting relatively more quickly (compared to other individuals)?
first stimulus
second stimulus
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