1.8×10^n=(6×100,000,000)×(3×1,000,000) 1.8×10^n=600,000,000×3,000,000 1.8×10^n=1,800,000,000,000,000 Divide both sides by 1.8 10^n=1,000,000,000,000,000 There are 15 0's, so n=15
A sampling distribution for samples of size n=49 from a population with means μ=210,000 and standard deviation σ=35,000, has the following means anda standard deviation:
If X ¯ is the mean sales price of the sample, it will have a mean value of E(X ¯)=210,000.