We use an F test rather than a t test for multi-group studies primarily to, statistics assignment help

We use an F test rather than a t test for multi-group studies primarily to, statistics assignment help

We use an F test rather than a t test for multi-group studies primarily to

a.

Avoid calculating standard deviations from the variances.

b.

Be able to use a single formula regardless of differing sample sizes between groups.

c.

Reduce calculation time.

d.

Avoid escalating type 1 error rates.

I doubt between two. Need help clarifying which one would be the correct one