Any one has the answer to this question is for MATH302 Quiz 5

Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.

The marketing manager of a large supermarket chain would like to determine the effect of shelf space (in feet) on the weekly sales of international food (in hundreds of dollars). A random sample of 12 equal –sized stores is selected, with the following results:

Store    Shelf Space(X)    Weekly Sales(Y)
1    10    2.0
2    10    2.6
3    10    1.8
4    15    2.3
5    15    2.8
6    15    3.0
7    20    2.7
8    20    3.1
9    20    3.2
10    25    3.0
11    25    3.3
12    25    3.5

Based on these data, what are the least squares regression coefficients of the Y-intercept (a) and slope (b)?

Place your answers, rounded to 3 decimal places , in the blanks provided.

a =          b =