Homework Help: STAT

Posted by Anonymous on Friday, November 23, 2012 at 4:59pm.

One of the conditions that allows us to use ANOVA safely is that of equal (population) standard deviations. Can we assume that this condition is met in this case?
here are options
(a) No, since the three sample standard deviations are not all equal.
(b) No, since the population standard deviations are not given, so we cannot check this condition.
(c) Yes, since 5.7 - 4.9 < 2.
(d) Yes, since 5.7 / 4.9 < 2.

I got answer as C, I need someone to help me confrim this because I was confused to between C and D. Please help

STAT - PsyDAG, Saturday, November 24, 2012 at 11:45am
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

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