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 |
![Conclusion:
O There is sufficient evidence to warrant rejection of the claim that these values are consistent with
Benford's Law.
O There is not sufficient evidence to warrant rejection of the claim that these values are consistent
with Benford's Law.
O The sample data supports the claim that these values are consistent with Benford's Law.
There is not sufficient data to support the claim that these values are consistent with Benford's Law.
Enter the critical value, along with the significance level and degrees of freedom x (a,df) below the
graph. (Graph is for illustration only. No need to shade.)
X²- Distribution
0.12
0.1
0.08
0.06
0.04
0.02
五红
X
X2,
Probability
LE
43
29
60T
115
127
133](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8484936c-d131-41d3-847f-811cbd71a7e6%2F224e27f0-b3af-4aac-9994-d051ce6ec337%2Ftkxpof_processed.png&w=3840&q=75)
![The sum of the observed frequencies is 90.
Ho: P1 = .301, P2 = .176, P3 = .125, P4 = .097, p5 = .079, P6 = .067, P7 = .058, ps = .051, Pg = .046
H1: at least one is different
Original Claim:
O Ho
OH:
Test Statistic =
(Round to three decimal places.) P-value =
(Round to four decimal places.) Decision:
O reject the null hypothesis
Ofail to reject the null hypothesis
O Accept the null hypothesis](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8484936c-d131-41d3-847f-811cbd71a7e6%2F224e27f0-b3af-4aac-9994-d051ce6ec337%2Fr0oddkn_processed.png&w=3840&q=75)
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