Group A: 20, 21, 20, 26 Group B: 10, 10, 19, 171. State your null and research hypothesis in complete sentences.2.What is the df for two groups combined? 3.What are the cut-off points?4.Find the pooled variance. Be sure to show your computation process.5.Find the estimated standard error. Be sure to show your computation process.6.Find the t-value.7.Write your conclusion thoroughly.
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.
Group A: 20, 21, 20, 26
Group B: 10, 10, 19, 171.
State your null and research hypothesis in complete sentences.2.What is the df for two groups combined? 3.What are the cut-off points?4.Find the pooled variance. Be sure to show your computation process.5.Find the estimated standard error. Be sure to show your computation process.6.Find the t-value.7.Write your conclusion thoroughly.
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