For each problems listed below, determine whether the problem represents Dependent Samples (Matched Pairs) or Independent Samples situation by selecting the correct box for each. a. Comparing the incomes of 110 teachers and 79 nurses: O Independent Samples O Dependent Samples b. Comparing the weights of for 39 baseball players and 55 hockey players: O Dependent Samples O Independent Samples c. Comparing how many hours 130 college students spend studying per week for statistics to how many hours they spend on their smartphone per week: O Dependent Samples O Independent Samples d. Comparing the days of rain in California and days of rain in Alaska: O Independent Samples O Dependent Samples
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.
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