Which is not true of the za, formula for a population percentage estimation?
A) The z stands for the z value for the level of confidence.
B) The z value will typically be for a 95% or 99% level of confidence.
C) The a equals the sample percentage.
D) The a will typically be for a 95% or 99% level of confidence.
E) The z value will normally correspond to ±1.96 or ±2.58 standard errors.
Answer: c
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Marketing
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