Homework SourseConstruct the 95 confidence interval for the slope coefficie
Construct the 95% confidence interval for the slope coefficient. (Negative values should be indicated by a minus sign. Round your intermediate calculations to 4 decimal places,\"t/2,df\" value to 3 decimal places and final answers to 2 decimal places.)
At the 5% significance level, does the slope differ from zero?
| Consider the following simple linear regression results based on 20 observations. Use Table 2. |
Solution
a-1.
H0: 0 = 0; HA: 0 0 [ANSWER]
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a-2.
As P = 0.000 < 0.05,
Reject H0; the intercept differs from zero. [ANSWER]
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B-1.
As can be seen in the table, the confidence interval is (0.11, 0.62). [ANSWER]
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B-2.
Yes, since the interval does not contain zero. [ANSWER]
