N order to set rates, an insurance company is trying to estimate the number of sick days that full time workers at an auto repair shop take per year. Assume σ = 6.8 days. How large a sample must be selected if the company wants to be 98% confident that the true mean differs from the sample mean by no more than 2 days?

The  large  sample must be selected if the company wants to be 98% confident that the true mean differs from the sample mean by no more than 2 days

n = 62.5427≅63

Step-by-step explanation:

Step1:-

Given maximum of error = M.E =  2 days

Given population standard deviation  σ = 6.8 days

98% confident level Z₀.₀₂ = 2.326

Step2:-

we know that the maximum of error

cross multiplication , we get

squaring on both sides, we get

on calculation , we get

n = 62.5427

Conclusion:-

The  large  sample must be selected if the company wants to be 98% confident that the true mean differs from the sample mean by no more than 2 days

n = 62.5427≅63

lo.lll

step-by-step explanation:

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you