Two random samples are drawn from a populations with mean μ = 66 and standard deviation σ = 5.5, one sample with n = 16 and one with n = 36. can you use the standard normal distribution to calculate the probability that the sample mean falls between 66 and 68 for both sample sizes?

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

He is right i did this thing before

Main idea on left, details on right