in promoting graduates of its honors program by establishing that the mean GPA of these graduates exceeds 3.50. A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60. The population standard deviation is assumed to equal 0.40. At a 5% significance level, the decision is to A. reject Ho we can conclude that the mean GPA is significantly greater than 3,50 B. reject Ho we cannot conclude that the mea
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.
A university is interested in promoting graduates of its honors program by establishing that the
A. reject Ho we can conclude that the mean GPA is significantly greater than 3,50
B. reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50
C. not reject Ho we can conclude that the mean GPA is significantly greater than 3.50
D. not reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50
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