Author Question: In testing for the equality of two population variances, when the populations are normally ... (Read 59 times)

pragya sharda · **on:** Jun 24, 2018

In testing for the equality of two population variances, when the populations are normally distributed, the 10 level of significance has been used. To determine the rejection region, it will be necessary to refer to the F table corresponding to an upper-tail area of:
a. .90
b. .20
c. .10
d. .05

Question 2

Smoothing time series data by the moving average method or exponential smoothing method is an attempt to remove the effect of the:
a. trend component c. seasonal component
b. cyclical component d. random variation component