Question

In: Statistics and Probability

Test the slope of the regression line, ŷ = -46.292 + 15.240 x of the following...

Test the slope of the regression line, ŷ = -46.292 + 15.240 x of the following data. Use α = .10 and se = 108.7.

Advertising Sales
12.5 148
3.7 55
21.6 338
60.0 994
37.6 541
6.1 89
16.8 126
41.2 379


(Round the intermediate values to 3 decimal places. Round your answer to 2 decimal places.)

Observed t=
The decision is to                                                           reject the null hypothesisfail to reject the null hypothesis.

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Test the slope of the regression line, ŷ = -46.292 + 15.240 x of the following...
Test the slope of the regression line, ŷ = -46.292 + 15.240 x of the following data. Use α = .10 and se = 108.7. Advertising Sales 12.5 148 3.7 55 21.6 338 60.0 994 37.6 541 6.1 89 16.8 126 41.2 379 (Round the intermediate values to 3 decimal places. Round your answer to 2 decimal places.) Observed t= ______ The decision is to _______ A) Fail to reject the null hypothesis B) Reject the null hypothesis.
test the hypothesis that the true slope of the regression line is zero (as opposed to...
test the hypothesis that the true slope of the regression line is zero (as opposed to nonzero). State the appropriate null and alternative hypotheses, give the value of the test statistic and give the appropriate P-value. (Use a significance level of 0.05.) Explain precisely what this means in terms of the relationship between the two variables. Data x y 77.5 45 80 73 78 43 78.5 61 77.5 52 83 56 83.5 70 81.5 70 75.5 53 69.5 51 70...
Create a class defined for Regression. Class attributes are data points for x, y, the slope and the intercept for the regression line.
Python:Create a class defined for Regression. Class attributes are data points for x, y, the slope and the intercept for the regression line. Define an instance method to find the regression line parameters (slope and intercept). Plot all data points on the graph. Plot the regression line on the same plot.
There is a regression line Y = 10 + 11X. The SEE for the slope is...
There is a regression line Y = 10 + 11X. The SEE for the slope is 60. The sample size is 10. The standard deviation of Y is 100 and the standard deviation of X is 5. Do a hypothesis test. Calculate the t-statistic, state the critical value, and state what this means with regards to the relation between X and Y.
1. The slope coefficient for a regression of Y on X is
Consider the data in the table below.YX5810555491969105952798Answer the following questions to two decimal places.1. The slope coefficient for a regression of Y on X is2. The constant of a regression of Y on X is3. The residual for the first observation in the table is4. The correlation of the residuals and X is
How are the slope and intercept of a simple linear regression line calculated? What do they...
How are the slope and intercept of a simple linear regression line calculated? What do they tell us about the relationship between the two variables? Give example of problem.
How are the slope and intercept of a simple linear regression line calculated? What do they...
How are the slope and intercept of a simple linear regression line calculated? What do they tell us about the relationship between the two variables? Also, give an example.
How do we determine whether the actual slope of the regression line is not zero?
How do we determine whether the actual slope of the regression line is not zero?
Given The following results from LINEAR REGRESSION Analysis for the variables X and Y Slope= 12.7...
Given The following results from LINEAR REGRESSION Analysis for the variables X and Y Slope= 12.7 y-intercept =3.2 n=10 SE=4.3 The equation of the regression line is …… and 95% confidence interval for the slope is…. (A)Y=3.2+12.7X, and (3.675,12.768) (B)Y=12.7+3.2X, and (2.784,12.745) (C)Y=3.2+12.7X, and (2.784,22.616)
Find the slope of the normal line to the curve described by (x + y) ^...
Find the slope of the normal line to the curve described by (x + y) ^ (1/2) = xy ^ 2 + e ^ x at the point (0,1)
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT