subject
Mathematics, 25.11.2021 07:40 timothyallenhall2006

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

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Answers: 1

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You know the right answer?
When we standardize xbar, we use the formula Z = (xbar-mu) / (sigma/sqrt(n)),
where
...

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