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MCQs: ANOVA

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THESE ARE SOME OF THE QUESTIONS I AM WORKING ON, IF POSSIBLE CAN YOU PLEASE LET ME KNOW IF MY ANSWERS ARE CORRECT/SOLVE? THANK YOU!!

For an ANOVA comparing three treatment conditons, what is stated by the null hypothesis (Ho)?
* at least one of the 3 population means is different from another mean
* none of these choices are correct (this is the one I chose)?
* there are no differences between any of the population means
* all 3 of the population means are different from each other

For an ANOVA comparing 3 treatment conditions, what is stated by the alternative hypothesis (H1)?
* all 3 of the population means are different from each other
* none of these choices is correct
* at least one of the 3 population means is different for another mean (this is the one I had chosen?)
* there are no differences between any of the population mean

When comparing more than 2 treatment means, why should you use an analysis of variance instead of using several t tests?
* there is no advantage to using an analysis of variance instead of several t test
* the analysis of variance is more likely to detect a treatment effect
* using several t test increases the risk of a Type I error (this is the one I had chosen)?
* using several t test increases the risk of a Type II error

In an analysis of variance, differences between participants contribute to which of the following variances?
* neither between treatments variance nor within treatment variance (this is the one I had chosen?)
* between treatments variance but not within treatment variance
* both between treatments variance and within treatment variance
* within treatments variance but not between treatments variance

In an analysis of variance differences caused by treatment effects contribute to which of the following variances?
* between treatment variance but not within treatment variance
* neither between treatments variance nor within treatments variance
* within treatments variance but not between treatments variance
* both between treatments variance and within treatments variance (this is the one I had chosen?)

On average what value is expected or the F-ratio if the null hypothesis is true?
* k-1
* 1.00
* N-k
* 0 (this is the one I had chosen)?

On average what value is expected for the F-ratio if the null hypothesis is false?
* much greater than 1.00
* between 0 and 1.00
* 1.00 (this is the one I had chosen)?
*0

A research study comparing three treatments with n=5 in each treatment produces T1=5, T2=10, T3=15, with SS1=6, SS2=9, SS3=9 and EX2=94. for this study what is SS total?
*34
* 10 (?)
* 68
* 24

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Solution Summary

The solution provides answers to multiple choice questions on ANOVA. The ANOVA comparing three treatment conditions are provided.

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For an ANOVA comparing three treatment conditons, what is stated by the null hypothesis (Ho)?
* at least one of the 3 population means is different from another mean
* none of these choices are correct (this is the one I chose)?
* there are no differences between any of the population means
* all 3 of the population means are different from each other
For an ANOVA comparing 3 treatment conditions, what is stated by the alternative hypothesis (H1)?
* all 3 of the population means are different from each other
* none of these choices is correct
* at least one of the 3 population means is different for another mean (this is the ...

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