In: Math
Price | Bedroom | Bathroom | Cars | SQ FT |
298,000 | 3 | 2.5 | 0 | 1,566 |
319,900 | 3 | 2.5 | 0 | 2,000 |
354,000 | 3 | 2 | 2 | 0 |
374,900 | 4 | 2.5 | 0 | 2,816 |
385,000 | 4 | 2 | 0 | 0 |
389,000 | 3 | 2.5 | 0 | 2,248 |
399,000 | 4 | 3 | 0 | 2,215 |
415,000 | 3 | 2.5 | 0 | 3,188 |
444,900 | 3 | 2 | 0 | 2,530 |
450,000 | 3 | 2 | 0 | 1,967 |
465,000 | 4 | 3 | 0 | 2,564 |
340,000 | 4 | 2.5 | 0 | 2,293 |
275,000 | 3 | 2.5 | 2 | 1,353 |
425,000 | 3 | 2 | 0 | 1,834 |
250,000 | 3 | 2.5 | 0 | 5,837 |
450,000 | 3 | 2.5 | 0 | 9,060 |
390,000 | 3 | 3.5 | 0 | 1,002 |
269,000 | 3 | 2.5 | 0 | 1,680 |
425,000 | 3 | 2.5 | 2 | 4,356 |
425,000 | 2 | 2.5 | 2 | 2,993 |
425,000 | 3 | 3 | 0 | 4,356 |
429,900 | 5 | 3.5 | 1 | 2,154 |
400,000 | 3 | 2.5 | 2 | 1,846 |
399,900 | 3 | 2 | 1 | 2,018 |
388,990 | 4 | 4 | 0 | 2,295 |
data -> data analysis -> correlation
Price | Bedroom | Bathroom | Cars | SQ FT | |
Price | 1 | ||||
Bedroom | 0.1163 | 1 | |||
Bathroom | 0.0693 | 0.4544 | 1 | ||
Cars | -0.0119 | -0.2773 | -0.1439 | 1 | |
SQ FT | 0.1825 | -0.1648 | 0.0818 | -0.1522 | 1 |
with Price, there is weak correlation with every independent variable
SQ FT has highest correlation with Price
Bathroom and Bedroom has correlation 0.4544
data -> data analysis -> regression
SUMMARY OUTPUT | |||||
Regression Statistics | |||||
Multiple R | 0.2449 | ||||
R Square | 0.0600 | ||||
Adjusted R Square | -0.1280 | ||||
Standard Error | 63973.0562 | ||||
Observations | 25 | ||||
ANOVA | |||||
df | SS | MS | F | Significance F | |
Regression | 4 | 5222651649.4394 | 1305662912.3598 | 0.3190 | 0.8619 |
Residual | 20 | 81851038446.5607 | 4092551922.3280 | ||
Total | 24 | 87073690096.0000 | |||
Coefficients | Standard Error | t Stat | P-value | Lower 95% | |
Intercept | 309980.8034 | 90752.3457 | 3.4157 | 0.0027 | 120674.7275 |
Bedroom | 17945.0381 | 25574.4249 | 0.7017 | 0.4910 | -35402.2774 |
Bathroom | -2595.9465 | 28990.2834 | -0.0895 | 0.9295 | -63068.6180 |
Cars | 5114.6350 | 16897.8149 | 0.3027 | 0.7653 | -30133.5893 |
SQ FT | 7.3638 | 7.4722 | 0.9855 | 0.3362 | -8.2230 |
see the column p-value
we observe that all independent variable has p-value > 0.05
hence they all are insignificant
lowest p-value is of SQ Ft
so we just include this
SUMMARY OUTPUT | |||||
Regression Statistics | |||||
Multiple R | 0.182509324 | ||||
R Square | 0.033309653 | ||||
Adjusted R Square | -0.008720362 | ||||
Standard Error | 60495.52468 | ||||
Observations | 25 | ||||
ANOVA | |||||
df | SS | MS | F | Significance F | |
Regression | 1 | 2900394438 | 2900394438 | 0.792520615 | 0.382556796 |
Residual | 23 | 84173295658 | 3659708507 | ||
Total | 24 | 87073690096 | |||
Coefficients | Standard Error | t Stat | P-value | Lower 95% | |
Intercept | 368173.8051 | 21041.84324 | 17.49722213 | 8.72146E-15 | 324645.4359 |
SQ FT | 5.970685713 | 6.706855155 | 0.890236269 | 0.382556796 | -7.903501245 |
y^ = 368173.8051 + 5.9707 SQ FT