1. According to a recent Gallop poll of 1,017 Americans, aged 18 and older, 610 of them support making marijuana legal. Results for this Gallup poll are based on telephone interviews conducted in October 2016. A. Calculate the sample proportion (p) B. We use the sample proportion of Americans who support making marijuana legal to estimate the a. Sample Mean b. Standard Deviation c. Population Proportion d. Population Mean
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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- The proportion of times an outcome occurs for a large number of repetitions is known as what?
Probability - Standard deviation
- Margin of Error
- Confidence Level
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