You want to obtain a sample to estimate a population mean. based on previous evidence, you believe the population standard deviation is approximately σ = 34.5 . you would like to be 99% confident that your estimate is within 10 of the true population mean. how large of a sample size is required?

Required sample size is minimum 79

Step-by-step explanation:

Minimum sample size to estimate the true population mean is given by the formula:

N≥ where

z=2.58 for 99% confidence level, s= 34.5 and E=10. If we put these numbers in the formula:

N≥ =78.97 ≈ 79

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844