Floor Space (5q. ft.) 6,060 5,230 4,280 5,580 5,670 5,020 5,410 4,990 Weekly Sales (dollars) 16,380 14,400 13,820 18,230 14, 200 12,800 15,840 16,610 4,220 4,160 4,870 5,470 13,610 10,050 15,320 13,270 B Click here for the Excel Data File (a) Using the table above, select the most appropriate scatter plot from the given choices. Scatter Plot A Scatter Plot B Scatter Plot C Floor Space and Weekly Sales Floor Space and Weekly Sales Floor Space and Weekly Sales 20,000 18,000 16,000 14.000 12,000 10,000 8.000 6,000 4,000 2,000 20,000 18,000 16.000 14.000 12.000 10,000 8.000 6,000 4,000 20,000 18,000 16.000 14,000 * 12,000 10,000 8.000 6.000 4,000 2,000 1. 2,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 FLOOR SPACE FLOOR SPACE FLOOR SPACE O Scatter Plot A O Scatter Plot B O Scatter Plot C sanS A TMM sanvSA TMIM
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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