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Use this for question 2 of the assignment , also paste in the scatterplot Inferential statistics paste this into the word file and add comments
Use this for question 2 of the assignment , also paste in the scatterplot | |||
Inferential statistics | |||
paste this into the word file and add comments | |||
correlation r | 0.881540064 | ||
R square | 0.777112884 | ||
estimate of population slope | 1.931811242 | ||
standard error of slope | 0.104508612 | ||
Confidence interval | |||
95% of samples slopes are within | 1.984467455 | ||
standard errors of the population slope | |||
you can be 95% confident the population slope is between | |||
1.724417303 | |||
and | |||
2.13920518 | |||
0 is not in the confidence interval so there is strong evidence of a relationship | |||
Hypothesis testing | |||
test stat of slope | 18.48470868 | ||
two sided p-value for slope | 1.03491E-33 | ||
To calculate the p-value H0:population slope =0 is assumed to be true | |||
since the test is two sided H1 is H1:population slope 0 |
- Comment on the confidence interval for the slope
- Comment on the Pvalue testing the claim the slope is different to 0
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