Assignment



Question # 1

Descriptives

Statistic

Std. Error

38.4

Mean

43.491667

2.6682607

92% Confidence Interval for Mean

Lower Bound

38.346121

Upper Bound

48.637212

5% Trimmed Mean

42.796296

Median

41.150000

Variance

85.435

Std. Deviation

9.2431260

Minimum

32.5000

Maximum

67.0000

Range

34.5000

Interquartile Range

10.7750

Skewness

1.606

.637

Kurtosis

3.157

1.232

The above table represents the descriptive statistics along with the Interquartile range of the given data. As it can be seen in the above table that the average tax of a state is 43.49 with a standard error of 2.66. The interquartile range of the taxes is 10.77. Below is the Box plot of the taxes paid by states.

In order to check whether the mean value of taxes is decreased from 47, we have computed a t-test to check the assumption. Since, the p-value at the 95% ...