Author Question: When s is used to estimate , the margin of error is computed by using the a. normal distribution. ... (Read 62 times)

rmenurse · **on:** Jun 24, 2018

When s is used to estimate , the margin of error is computed by using the
a. normal distribution.
b. t distribution.
c. mean of the sample.
d. mean of the population.

Question 2

A method that uses a weighted average of past values for arriving at smoothed time series values is known as
a. a smoothing average.
b. a moving average.
c. additive approach.
d. exponential smoothing.