You wish to test the following claim (Ha) at a significance level of a = 0.10. H.:p1 – p2 = 0 Ha:p1 – p2 > 0 You obtain a sample from the first population with 565 successes and 62 failures. You obtain a sample from the second population with 367 successes and 61 failures. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =| -2.489 What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = .00639
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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