When should you use a pooled estimate of the standard deviation in a two sample test (click all that apply)? a. If the sample sizes are large b. If the sample sizes are both relatively small c. If the...

When should you use a pooled estimate of the standard deviation in a two sample test (click all that apply)?

a. If the sample sizes are large

b. If the sample sizes are both relatively small

c. If the standard deviations sum to less than 1

d. If the ratio of the larger to the smaller sample standard deviation is less than 2

Jun 02, 2022

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