Aesthetic and minimalist design: The website complies with heuristic 8. All the information is related to European Union topics, they don’t show any irrelevant news as far as I saw. It is easy to read through and very understandable, they use the appropriate font sizeand color. Help and documentation: The website compiles with heuristic 10. I did not really need any help, the website has very good organized and easy to follow. Even if you do not understand a way to reach something or find something, the webpage has the options of “Still need help?” buttons as well as a “Questions about the EU?” section on the side bar.
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Mean = ∑ ( 43+35+40+65+29+53+35+46+59+46+26+43+42+23+26+23+39+20+33+5) / 2036.550Median = 5,20,23,23,26,26,29,33,35,35,39,40,42,43,43,46,46,53,59,65 = (35+39)/2 37.000Mode = 23.000,26.000,35.000,43.000,46.000How do the three values compare?The mean and median are very close, the mode is way off if we look at each value separately. But if wetake the mean of the mode, the value is very close to the mean of the data set.6)Using the set of scores from problem 5, compute the variance and standard deviation for the sample.Xi = each data point (43+35+40+65+29+53+35+46+59+46+26+43+42+23+26+23+39+20+33+5)X not = 36.550n= 20((43-36.55)^2+(35-36.55)^2+(40-36.55)^2+(65-36.55)^2+(29-36.55)^2+(53-36.55)^2+(29-35.66)^2+…… (5-35.66)^2 )/19Variance = 201.418(((43-36.55)^2+(35-36.55)^2+(40-36.55)^2+(65-36.55)^2+(29-36.55)^2+(53-36.55)^2+(29-35.66)^2+…… (5-35.66)^2 )/19)^1/2Standard Deviation = 14.192
7) Given that the standard deviation is simply the square root of the variance, why would researchers want to compute and report the standard deviation rather than just reporting the variance?Because variance only shows or reports squared units, while the standard deviation express the same units as the mean calculated before. It has the same units as the mean.8) X = 26z = ( 26-36.550)/14.192z = -0.743Proportion at or below z =0 .229X = 50 z = (50-36.550)/14.192z= .949Proportion at or below z = 0.829PercentileZ scoreData Value5th-1.65013.13350th0.00036.55095th1.65059.967Data Values Formula−1.650=X−36.55014.192∴X=13.1330.000=X−36.55014.192∴X=36.5501.650=X−36.55014.192∴X=59.967
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