3. The tables below shows school T-shirt sales for the past ten weeks. The school wants ot make one more order for the next 30 weeks. How could the school decide how many T-shirts to order? Date Sept 10 |Sept 17 Sept 24 Sales 7 Oct 1 Oct 8 Oct 15 Oct 22 Oct 29 Nov 5 Nov 12 50 8 9 10 12 7 7 9. 11 Nhat are the mean median mode and range of the T-shirt data shown above?
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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