When we standardize xbar, we use the formula Z = (xbar-mu) / (sigma/sqrt(n)),
where
xbar = sample mean,
mu = population mean,
sigma = population standard deviation, and
n = sample size
Instead of sigma, if we use the sample standard deviation (s), then it becomes ? = (xbar-mu) / (s/sqrt(n)). What is "?" in the formula above?
a. T
b. C
c. Z
d. F
e. X

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212