Assume that the differences are normally distributed. Complete parts (a) through (d) below. Observation 1 2 3 4 6. 7 8 X1 42.3 47.2 43.6 46.4 47.9 45.6 48.2 49.6 Yi 45.5 46.4 45.7 50.5 50.4 45.7 49.4 49.7 (a) Determine d; = X; - Y; for each pair of data. Observation 1 3 4 6 7 8 d; (Type integers or decimals.) (b) Compute d and d = (Round to three decimal places as needed.) Sa =| (Round to three decimal places as needed.) (c) Test if Hd < 0 at the a = 0.05 level of significance. LO
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 with 6 images
