Please help find some data with at least 100 cases to running a simple regressio
ID: 2921419 • Letter: P
Question
Please help find some data with at least 100 cases to running a simple regression into the Spss software firstly, and making the SPSS output tables as a screen shot. Then use to answer questions by typed in detailly. Thank you so much!(please try the best to answer all the 4 question in detailly, and show the SPSS output table, please)
Questions:
1. Describe the variables. What are they? How are they coded?
2. What is your prediction of the relationship between these variables? What do you expect to see?
3. Compute and report the regression equation. What is the equation? Was your prediction supported? How much variance was explained?
4. What are the practical implications of this relationship? If you collected additional data, do you think the relationship would replicate? Why or why not?
Explanation / Answer
I am taken data from the article "Pricing the C's of Diamond Stones". The data appeared in Singapore's Business Times edition of February 18, 2000. The objective is to infer a sensible pricing model for diamond stones based on data pertaining to their weight. All variables are defined in this paper correctly.
SUMMARY OUTPUT Regression Statistics Multiple R 0.944727 R Square 0.892508 Adjusted R Square 0.892157 Standard Error 0.091025 Observations 308 ANOVA df SS MS F Significance F Regression 1 21.05155 21.05155 2540.734 3E-150 Residual 306 2.535399 0.008286 Total 307 23.58695 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 0.244671 0.009253 26.44255 5.09E-81 0.226464 0.262878 X Variable 1 7.69E-05 1.53E-06 50.40569 3E-150 7.39E-05 8E-05Related Questions
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