How many hours and how well do Australians sleep?

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Introduction:

Sleep is an essential part of a human being’s life, without it an individual couldn’t survive. In this essay we will focus on the relationship of sleep with different variables like life statisfaction or physical satisfaction and many more. Statistics will tell us an exact number of how many hours does an average Australian sleep. The total observations are 1601 that are taken from eight different states of Australia.

  1. Duration of sleep:
Sleeping Hours
Mean 49.93678951
Standard Error 0.225803071
Median 50
Mode 55
Standard Deviation 9.03494494
Sample Variance 81.63023006
Kurtosis 3.819900307
Skewness 0.373027457
Range 98
Minimum 13
Maximum 111
Sum 79948.8
Count 1601
Confidence Level (95.0%) 0.442900927

Range of hours: 

Lower: 49.49

Higher: 50.37

This answer includes the data about the sleeping pattern of an Australian individual per week. Through Fig 1, the mean was calculated that is 49.93; in other words, we can say that an Australian individual sleep approximately 50 hours a week. The range of the sample was calculated through the 50th percentile that gave the value, 50. The Interquartile range (IQR) of the given sample is 10, it is calculated by the subtraction of the 3rd quartile with the 1st quartile, 55-45 is equals to 10. Fig shows a histogram of the sleeping hours of an individual Australian per week. The data is a bell shaped and is somewhat symmetrical as the skewness and kurtosis both are positive. This means that the distribution is correct. The range of hours around the mean hours in which 95% of people sleep is from 49.49 to 50.37, the highest and the lowest values are really close. 

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