A Century 21 seller wants to establish the relationship between…

A Century 21 seller wants to establish the relationship between the time in months that the apartments are for sale before they are sold and the asking price for them. The data of a sample of 9 departments are shown below.
1. Estimate the ordinary least squares regression of Y on X
2. Perform the interpretation of the estimators
3. Obtain the R2 of the regression and interpret it
4. Ask if estimators a and b are statistically significant
5. Inquire if the model is statistically significant at the 5% level of significance
Months for sale
Asking price (in thousands of pesos)
Y
X
6.5
800
7.0
1,000
8.6
990
12.1
1,250
9.0
1,400
9.5
1,100
8.6
990
10.6
990
15.0
1,250