Use the following calculations in the relevant formulas to answer the questions

Need Help don't know where to start
n = 7 (Greek)E(x − x̄) = 4,924.00
x̄ =44 E(y − ȳ)= 904,627.43
ȳ =553 E(y − ŷ)= 35,168.50
Exy =235,843 E(ŷ − ȳ)= 869,458.93
Ex^2 = 18,476
To build a confidence interval for the slope coefficient b©û the standard error of b1, se(b1) = _____
1.195
2.241
3.244
4.242

To calculate the standard error of the slope coefficient, you need to use the following formula:

se(b1) = sqrt((Ex^2 * Ey) - (Exy^2)) / (n * sqrt(Ex^2 - (1/n) * (Ex^2)))

Let's plug in the given values:

Ex^2 = 18,476
Ey = 904,627.43
Exy = 235,843
n = 7

se(b1) = sqrt((18,476 * 904,627.43) - (235,843^2)) / (7 * sqrt(18,476 - (1/7) * 18,476))

se(b1) = sqrt((16,717,448,752.68) - (55,627,782,649)) / (7 * sqrt(18,476 - 2,638))

se(b1) = sqrt(16,661,821,103.68) / (7 * sqrt(15,838))

se(b1) = 129,144.48 / (7 * 125.98)

se(b1) = 129,144.48 / 881.86

se(b1) ≈ 146.37

Therefore, the standard error of the slope coefficient, se(b1), is approximately 146.37.

Answer: None of the provided answer choices (1.195, 2.241, 3.244, 4.242) matches the calculated value.