Hi po paki sagot po ito
yung number 8-10 po
ibreanlies ko ang makasagot​

Find the commission on a $590.00 sale if the commission is 15%.

If np3 /nc2 = 6, find the value of n

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.