Question
In: Statistics and Probability
Use "PLUC" data and the description for the dataset on the blackboard. Is there sufficient evidence...
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Use "PLUC" data and the description for the dataset on the blackboard. Is there sufficient evidence that the population mean of "PLUC.pre" is different than that of "PLUC.post"? Use R to find the p-value for the test. ***Answer is 8.739E-08*** |
| PLUC.post | PLUC.pre |
| 6.483496 | 8.078464 |
| 8.607279 | 8.539505 |
| 12.41932 | 13.32073 |
| 11.72048 | 8.640824 |
| 12.26601 | 9.979111 |
| 11.15877 | 8.878284 |
| 7.527066 | 10.6834 |
| 10.60626 | 8.728163 |
| 6.276827 | 10.68463 |
| 10.1099 | 11.35035 |
| 6.520483 | 12.71441 |
| 11.91813 | 8.892171 |
| 10.66304 | 8.830107 |
| 9.777328 | 10.50259 |
| 9.220989 | 5.537055 |
| 11.79612 | 8.710783 |
| 11.11839 | 12.75601 |
| 8.965028 | 6.423624 |
| 11.48719 | 3.823811 |
| 14.48936 | 5.596411 |
| 15.08942 | 10.01024 |
| 13.02814 | 12.31518 |
| 11.31217 | 9.416347 |
| 13.91277 | 9.56037 |
| 14.31236 | 10.23635 |
| 9.710978 | 11.91827 |
| 10.17722 | 11.03453 |
| 14.1332 | 12.44858 |
| 14.38372 | 7.586854 |
| 12.71119 | 10.39473 |
| 10.91406 | 10.89222 |
| 12.68831 | 10.14178 |
| 13.14921 | 11.76425 |
| 11.19178 | 8.791887 |
| 10.06341 | 10.02537 |
| 13.69448 | 7.588943 |
| 10.28917 | 12.70045 |
| 13.24905 | 9.857691 |
| 10.19303 | 6.485849 |
| 8.864154 | 7.245692 |
| 14.01109 | 13.61106 |
| 10.94582 | 10.07806 |
| 13.27707 | 11.24745 |
| 14.91922 | 12.66775 |
| 13.42178 | 7.963167 |
| 13.89574 | 12.76464 |
| 14.211 | 13.50282 |
| 15.24153 | 7.881113 |
| 16.37362 | 7.442888 |
| 12.74947 | 7.439501 |
| 18.58913 | 8.588766 |
| 13.86133 | 9.871416 |
| 11.34533 | 12.07392 |
| 15.03428 | 8.104788 |
| 15.29777 | 10.8924 |
| 14.49266 | 11.59966 |
| 11.48485 | 10.49421 |
| 11.20419 | 8.641233 |
| 17.40846 | 7.577269 |
| 14.684 | 9.056126 |
***Answer is 8.739E-08***
Solutions
orchestra answered 2 years agoRelated Solutions
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Use "PLUC" data and the description for the dataset on the
blackboard. Conduct a two sample independent t test to test if the
population means of heights of male is higher than that of female.
Use R to calculate the p-value.
***Answer is 0.8974***
sex
hgt
m
45.68187
m
54.76593
m
43.80479
f
46.1765
m
57.60508
f
40.02826
f
52.50647
f
43.14426
m
45.27999
m
41.95513
m
43.67319
f
58.09449
m
42.47022
f
55.91853
m
44.01857
f
43.25757
m
57.4945...
Use "PLUC" data and the description for the dataset on the blackboard. Conduct a two sample...
Use "PLUC" data and the description for the dataset on the
blackboard. Conduct a two sample independent t test to test if the
population means of heights of male is higher than that of female.
Use R to calculate the p-value.
***Answer is 0.8974***
sex
hgt
m
45.68187
m
54.76593
m
43.80479
f
46.1765
m
57.60508
f
40.02826
f
52.50647
f
43.14426
m
45.27999
m
41.95513
m
43.67319
f
58.09449
m
42.47022
f
55.91853
m
44.01857
f
43.25757
m
57.4945...
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1.
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DATA
Equal variances assumed
F= 1.572
Sig=.210
t= .370
df= 4998
Sig. (2- tailed)= .712
Mean difference= .185
Std. Error difference= .501
Lower= -.797
Upper= 1.167 95% confidence Interval
Equal variances not assumed
t= .370
df= 4992. 696
Sig. (2-tailed)= .712
Mean difference= .185
Std. Error difference= .501
Lower= .797
Upper= 1.167
a. should they reject or retain?...
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