Returns the one-tailed P-value of a Z-test with standard distribution.
ZTEST(data, value, [standard_deviation])
data- The array or range containing the dataset to consider.
value- The test statistic to use in the Z-test.
standard_deviation- [ OPTIONAL ] - The standard deviation to assume for the Z-test. If this is not provided,
STDEV(data)will be calculated.
- The P-value returned by
ZTESTis the probability that a value chosen at random from
datais at least as extreme (that is, as far from the mean) as
NORMSDIST: Returns the value of the standard normal cumulative distribution function for a specified value.
NORMDIST: The NORMDIST function returns the value of the normal distribution function (or normal cumulative distribution function) for a specified value, mean, and standard deviation.
CONFIDENCE: Calculates the width of half the confidence interval for a normal distribution.