The stem-and-leaf plot below shows how many minutes are spent sanitizing the kitchen at several similar-sized restaurants in a particular area. Which of the following conclusions is the strongest based on the given data? Stem Leaf 689 2559 2 0133688 1222579 4 0 24667 6. 7 2457 O Sanitizing time is similar for most restaurants in the area. O A few restaurants spend much more time sanitizing than the others. O Each restaurant could use extra sanitizing time. O Each restaurant should spend at least 70 minutes sanitizing the kitchen.
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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