Question: Consider the data. x i 1 2 3 4 5 y i 4 6 5 12 13 (a) Compute the mean square error using equation
Consider the data.
| xi | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| yi | 4 | 6 | 5 | 12 | 13 |
(a)
Compute the mean square error using equation s2 = MSE =
| SSE |
| n 2 |
. (Round your answer to two decimal places.)
(b)
Compute the standard error of the estimate using equation s =
| MSE |
=
|
. (Round your answer to three decimal places.)
(c)
Compute the estimated standard deviation of
b1
using equation sb1 =
| s | ||
|
. (Round your answer to three decimal places.)
(d)
Use the t test to test the following hypotheses ( = 0.05):
| H0: | 1 | = | 0 |
| Ha: | 1 | 0 |
Find the value of the test statistic. (Round your answer to three decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
Do not reject H0. We conclude that the relationship between x and y is significant.Reject H0. We conclude that the relationship between x and y is significant. Do not reject H0. We cannot conclude that the relationship between x and y is significant.Reject H0. We cannot conclude that the relationship between x and y is significant.
(e)
Use the F test to test the hypotheses in part (d) at a 0.05 level of significance. Present the results in the analysis of variance table format.
Set up the ANOVA table. (Round your values for MSE and F to two decimal places, and your p-value to three decimal places.)
| Source of Variation | Sum of Squares | Degrees of Freedom | Mean Square | F | p-value |
|---|---|---|---|---|---|
| Regression | |||||
| Error | |||||
| Total |
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)
p-value =
State your conclusion.
Do not reject H0. We conclude that the relationship between x and y is significant.Do not reject H0. We cannot conclude that the relationship between x and y is significant. Reject H0. We conclude that the relationship between x and y is significant.Reject H0. We cannot conclude that the relationship between x and y is significant.
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