Question 1
a) For the variable waiting in the data set, compute; mean, median and standard deviation. How many points are more than 1.5 times the interquartile range from upper quartile of the data
b) A survey of the peoples of Wakanda and Sokovia asked which of three super-heroes they preferred. The following table shows the results.
Is there evidence of a difference of a opinion between the two countries? What is the chi-square distance? (You may assume that a chi-square approximation is accurate).
For Sokovia, it has been argued that one quarter of the population prefer Ironman, and twice as many prefer Thor.
Is there any evidence against this?
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