Classify each statement (Pick True or False; NO EXPLANATION NEEDED). A. The test statistic separates the critical region from the non-critical region. True False B. The values of Chi-square can be negative. True False C. No error is committed when the null hypothesis is rejected when it is false. True False D. If the same diet is given to two groups of randomly selected adults, the samples are considered to be dependent. True False E. When p < α , the decision is to reject the null hypothesis. True False F. When the confidence interval for the difference of 2 independent means contains 0, it suggests that there is no difference between the 2 means. True False
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.
Classify each statement (Pick True or False; NO EXPLANATION NEEDED).
A. The test statistic separates the critical region from the non-critical region.
- True
- False
B. The values of Chi-square can be negative.
- True
- False
C. No error is committed when the null hypothesis is rejected when it is false.
- True
- False
D. If the same diet is given to two groups of randomly selected adults, the samples are considered to be dependent.
- True
- False
E. When p < α , the decision is to reject the null hypothesis.
- True
- False
F. When the confidence interval for the difference of 2 independent means contains 0, it suggests that there is no difference between the 2 means.
- True
- False
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