Test Statistic = (Round to three decimal places.) P-value = (Round to four decimal places.) Decision: O reject the null hypothesis O fail to reject the null hypothesis O Accept the null hypothesis
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Benford's law states that the
Business expenses tend to follow Benford's Law, because there are generally more small expenses than large expenses.
Perform a "Goodness of Fit" Chi-Squared hypothesis test (αα = 0.05) to see if these values are consistent with Benford's Law.
If they are not consistent, it there might be embezzelment.
Complete this table.
X | Observed Frequency (Counts) |
Benford's Law P(X) |
Expected Frequency (Counts) |
---|---|---|---|
1 | 11 | .301 | |
2 | 14 | .176 | |
3 | 21 | .125 | |
4 | 9 | .097 | |
5 | 11 | .079 | |
6 | 5 | .067 | |
7 | 6 | .058 | |
8 | 7 | .051 | |
9 | 6 | .046 |
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