PLEASE HELP WITH THE LAST PART OF THIS PROBELM Listed below are amounts of court income and salaries paid to the town justices. All amounts are in thousands of dollars. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value using α=0.05. Is there sufficient evidence to conclude that there is a linear correlation between court incomes and justice salaries? Based on the results, does it appear that justices might profit by levying larger fines? Court Income 66.0 402.0 1567.0 1131.0 270.0 253.0 110.0 154.0 32.0 Justice Salary 29 45 91 57 46 61 26 27 17 What are the null and alternative hypotheses? A. H0: ρ≠0 H1: ρ=0 B. H0: ρ=0 H1: ρ<0 C. H0: ρ=0 H1: ρ≠0 Your answer is correct. D. H0: ρ=0 H1: ρ>0 Construct a scatterplot. Choose the correct graph below. A. 08001600050100Court IncomeJustice Salary A scatterplot has a horizontal scale labeled “Court Income” from 0 to 1600 in intervals of 200 and a vertical scale labeled “Justice Salary” from 0 to 100 in intervals of 10. Nine points are plotted. Seven of the points loosely follow the pattern of a line passing through the points (147, 35) and (1276, 89). The plotted points (137, 13) and (1315, 14) are outliers. B. 08001600050100Court IncomeJustice Salary A scatterplot has a horizontal scale labeled “Court Income” from 0 to 1600 in intervals of 200 and a vertical scale labeled “Justice Salary” from 0 to 100 in intervals of 10. Nine plotted points follow the pattern of a line that falls from left to right passing through the points (216, 84) and (1413, 43). C. 08001600050100Court IncomeJustice Salary A scatterplot has a horizontal scale labeled “Court Income” from 0 to 1600 in intervals of 200 and a vertical scale labeled “Justice Salary” from 0 to 100 in intervals of 10. Nine points are plotted. Eight of the plotted points follow the pattern of a line rising from left to right passing through the points (32.0, 17) and (1567.0, 91). An outlier is plotted at (253.0, 61). Your answer is correct. D. 08001600050100Court IncomeJustice Salary A scatterplot has a horizontal scale labeled “Court Income” from 0 to 1600 in intervals of 200 and a vertical scale labeled “Justice Salary” from 0 to 100 in intervals of 10. Nine points are plotted. Eight of the plotted points loosely follow the pattern of a line falling from left to right passing through the points (264, 84) and (1473, 17). An outlier is plotted at (421, 24).. The linear correlation coefficient is r=0.8670.867. (Round to three decimal places as needed.) The test statistic is t=4.6104.610. (Round to three decimal places as needed.) The P-value is 0.0010.001. (Round to three decimal places as needed.) Because the P-value is less than the significance level 0.05, there is sufficient evidence to support the claim that there is a linear correlation between court incomes and justice salaries for a significance level of α=0.05. PLEASE HELP WITH THIS PART: Based on the results, does it appear that justices might profit by levying larger fines? A. It does appear that justices might profit by levying larger fines. B. It does appear that justices might profit by issuing smaller fines. C. It appears that justices profit the same despite the amount of the fines. D. It does not appear that justices might profit by levying larger fines.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Court Income
|
66.0
|
402.0
|
1567.0
|
1131.0
|
270.0
|
253.0
|
110.0
|
154.0
|
32.0
|
|
---|---|---|---|---|---|---|---|---|---|---|
Justice Salary
|
29
|
45
|
91
|
57
|
46
|
61
|
26
|
27
|
17
|
|
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