26. Let u = 78. A sample of 26 provided a sample mean x = 77.8 and a sample standard deviation s = 2. Find P (x < 77.8). %3D a. 0.1 < P (x < 77.8) < 0.15 b. 0.15 < P (x < 77.8) < 0.2 c. 0.2 < P (ï < 77.8) < 0.25 d. 0.25 < P (x < 77.8)
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.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
