Describe the distribution indicated by the frequency plot. Given the Statistical
ID: 3262808 • Letter: D
Question
Describe the distribution indicated by the frequency plot.
Given the Statistical hypothesis in part 1 and the approximate distribution in part 4,
6. Give a decision rule and estimate the type I error rate using the approximate distribution
in part 4.
7. Think about how you might use the randInt( random number generator to conduct this
simulation. Write down a few sentences describing your ideas.
Explanation / Answer
We can see from the plotted graph that the distribution is positively skewed and shows properties like the chi square distribution i.e. the mode is at the starting and more of the data is on the right side.
So, it is good to conclude the distribution as that of a chi square distribution .
The Chi Square distribution is very important because many test statistics are approximately distributed as Chi Square. Two of the more common tests using the Chi Square distribution are tests of deviations of differences between theoretically expected and observed frequencies (one-way tables) and the relationship between categorical variables (contingency tables)
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