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Descriptive statistics-median

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The median number of crimes of a particular type in Sydney is 10 per week. However, in the first 26 weeks of 2012, there have already been 12 weeks in which more than 10 crimes of this type have been committed. Should the Leader of the Opposition demand the resignation of the Minister for Police because of an increase in this type of crime, or would he be better advised not to raise the issue at all?

State clearly your answer to this question. Give reasons for your answer in not more than 8 lines of writing.

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Solution Summary

This solution discusses whether the Leader of the Opposition should demand the resignation of the Minister for Police because of an increase in this type of crime, given the median number of crimes.

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1/. The median number of crimes of a particular type in Sydney is 10 per week. However, in the first 26 weeks of 2012, there have already been 12 weeks in which more than 10 crimes of this type have been committed.
Should the Leader of the Opposition demand the resignation of the Minister for ...

Solution provided by:
Changping Wang, MA
Education
  • BSc , Wuhan Univ. China
  • MA, Shandong Univ.
Recent Feedback
  • "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
  • "excellent work"
  • "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
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