Based on your findings from the previous question, perform an appropriate directional t-test. Is there a significant difference?
Using pcnt_unemployed at the outcome variable and urban as the grouping variable
What will be an ideal response?
Since rural postcodes have a smaller mean than urban postcodes, we need to use the optionalternative="less" in the t-test.
t.test(pcnt_unemployed~urban, alternative="less", data=depdata)
Welch Two Sample t-test
data: pcnt_unemployed by urban
t = -12.317, df = 929.41, p-value < 2.2e-16
alternative hypothesis: true difference in means is less than 0
95 percent confidence interval:
-Inf -1.749274
sample estimates:
mean in group Rural
5.198791
mean in group Urban
7.217981
Since p ? .05, we conclude that rural postcodes’ mean unemployment percentage is statistically significantly
smaller than for urban postcodes.
You might also like to view...
In single?system research, a treatment that leads clients to fully achieve the goals that have
been set for them is called:
a. therapeutically effective. b. experimentally effective. c. statistically effective. d. substantively effective.
To determine whether clients are satisfied with the quality of services given by an agency, we would most likely employ what type of evaluation method?
A) ?Goal attainment scaling B) ?Pre-test/post-test design C) ?Random post-haste design D) ?None of the above
Individualism as used by the authors means:
a) People deserve the majority of the credit for any success they experience. b) People deserve most of the blame for any failures they experience. c) That micropractice is more socially acceptable than macropractice. d) All of the above
Which of the following has been validated for screening substance abuse problems with older adults?
A) TWEAK? B) ?Twenty Questions C) ?Geriatric MAST D) ?Geriatric AUDIT