In: Statistics and Probability
Continued from previous question.
Price |
SQFT |
Bed |
Bath |
LTSZ |
399900 |
5.026 |
4 |
4.5 |
0.3 |
375000 |
3.2 |
4 |
3 |
5 |
372000 |
3.22 |
5 |
3 |
5 |
370000 |
4.927 |
4 |
4 |
0.3 |
325000 |
3.904 |
3 |
3 |
1 |
325000 |
2.644 |
3 |
2.5 |
5 |
319500 |
5.318 |
3 |
2.5 |
2.5 |
312900 |
3.144 |
4 |
2.5 |
0.3 |
299900 |
2.8 |
4 |
3 |
5 |
294900 |
3.804 |
4 |
3.5 |
0.2 |
269000 |
3.312 |
5 |
3 |
1 |
250000 |
3.373 |
5 |
3.5 |
0.2 |
249900 |
3.46 |
2 |
2.5 |
0.6 |
244994 |
3.195 |
4 |
2.5 |
0.2 |
244900 |
2.914 |
3 |
3 |
0.3 |
239900 |
2.881 |
4 |
5 |
0.3 |
234900 |
1.772 |
3 |
2 |
3.6 |
234000 |
2.248 |
3 |
2.5 |
0.3 |
229900 |
3.12 |
5 |
2.5 |
0.2 |
219900 |
2.942 |
4 |
2.5 |
0.2 |
209900 |
3.332 |
4 |
2.5 |
0.2 |
209850 |
3.407 |
3 |
2.5 |
0.3 |
206900 |
2.092 |
3 |
2 |
0.3 |
200000 |
3.859 |
4 |
2 |
0.2 |
part 1 )
Price | SQFT | Bed | Bath | LTSZ | |
Mean | 208789.320 | 2.598 | 3.560 | 2.490 | 0.818 |
Standard Deviation | 79636.520 | 1.016 | 0.675 | 0.746 | 1.375 |
mean and standard deviation on each variable is above
you can generate by data-> data analysis -> descriptive statistics
check on summary statistics
for each variable
The statistical mean refers to the mean or average that is used to derive the central tendency of the data in question. It is determined by adding all the data points in a population and then dividing the total by the number of points.We derive the average and call as mean.
The standard deviation of a dataset gives you a measure of how spread out it is. On an average, it helps you ascertain how close each point is from the mean
for example average price is 208789.320
and sd of price is 79636.520
part 2)
using data -> data analysis -> regression
SUMMARY OUTPUT | |||||
Regression Statistics | |||||
Multiple R | 0.91940202 | ||||
R Square | 0.845300074 | ||||
Adjusted R Square | 0.83154897 | ||||
Standard Error | 32685.04673 | ||||
Observations | 50 | ||||
ANOVA | |||||
df | SS | MS | F | Significance F | |
Regression | 4 | 262682738715.9840 | 65670684678.9961 | 61.4714 | 0.0000 |
Residual | 45 | 48074052582.8958 | 1068312279.6199 | ||
Total | 49 | 310756791298.8800 | |||
Coefficients | Standard Error | t Stat | P-value | Lower 95% | |
Intercept | 23714.6259 | 25435.2663 | 0.9324 | 0.3561 | -27514.6301 |
SQFT | 44971.6764 | 6262.3653 | 7.1813 | 0.0000 | 32358.6252 |
Bed | -5028.7156 | 7921.0849 | -0.6349 | 0.5287 | -20982.5995 |
Bath | 26142.4324 | 8917.5724 | 2.9316 | 0.0053 | 8181.5196 |
LTSZ | 25725.1240 | 3437.0852 | 7.4846 | 0.0000 | 18802.4790 |
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