Kelly Eure
Capella University
MBA 6018
February 19, 2015 Dr. Hannon
Question 1
The most committed crimes somewhere around 2009 and 2011 were: Burglary, Filter, Forcible Sex Offense, and Motor Vehicle Theft.
Crime rates decreased essentially somewhere around 2009 and 2011 focused around a rundown of the information (incorporated in the table beneath) gave by the state. On the other hand, Filter and Forcible Sex Offense increased over the 2 years (U.S. Department of Education., 2012).
Burglary
Filter
Forcible Sex Offense
Motor Vehicle Theft
2009
368
165
79
56
2010
291
165
66
50
2011
253
181
73
27
Question 2
Utilizing t-Test, the results of the invalid hypothesis utilizing exceed expectations is: Variable 1
Variable 2
Mean
0.366667
1.733333
Variance
0.654023
16.4092
Observations
30
30
Hypothesized Mean Difference
0
df
31
t Stat
-1.81214
P(T<=t) one-tail
0.03983
t Critical one-tail
1.695519
P(T<=t) two-tail
0.079661
t Critical two-tail
2.039513
The huge distinction between Means of the 2 examples is sufficient confirmation that the crime rates in public institutions are more prominent. Subsequently, the invalid hypothesis ought not to be rejected (U.S. Department of Education., 2012).
Question 3
The distinction of the crime rates is 1003-912 = 81
81 will be utilized as the example size.
The standard deviation of the 2 gatherings is 21. The standard deviation speaks to the standard lapse of the testing appropriation.
Expecting that the alpha is 0.05, there is a need to focus, by computation, the region secured by the general (standard) ordinary bend. The standard bend ought to equivalent 95%, or 1-alpha. This worth speaks to + or -1.96. Subsequently, in the development of the confidence level, the accompanying equation applies:
On the other hand, the confidence interval can be created by utilizing the strategies beneath:
81 - (1.96) (21) and 81 + (1.96) (21)
81 – (1.96) (21) = 39.84 and 81 + (1.96) (21) = 122.16
The