Heights of 130 singers in the NY Choral Society in 1979 were self-reported to the nearest inch. The four voice parts in order from highest pitch to lowest pitch are Soprano, Alto, Tenor, Bass. The first two are female voices and the last two are male voices. We would like to test if different parts have significantly different heights. The standard deviations are: s1=2.8 s2-2.4 s3-1.9 S4-3.2 Using the equal variance assumption, can we say the standard deviations are close enough to use ANOVA? (select all that apply) O The assumption is not violated
Heights of 130 singers in the NY Choral Society in 1979 were self-reported to the nearest inch. The four voice parts in order from highest pitch to lowest pitch are Soprano, Alto, Tenor, Bass. The first two are female voices and the last two are male voices. We would like to test if different parts have significantly different heights. The standard deviations are: s1=2.8 s2-2.4 s3-1.9 S4-3.2 Using the equal variance assumption, can we say the standard deviations are close enough to use ANOVA? (select all that apply) O The assumption is not violated
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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
Transcribed Image Text:Heights of 130 singers in the NY Choral Society in 1979 were self-reported to
the nearest inch. The four voice parts in order from highest pitch to lowest pitch
are Soprano, Alto, Tenor, Bass. The first two are female voices and the last two
are male voices. We would like to test if different parts have significantly
different heights.
The standard deviations are: s1=2.8 s2=2.4 S3=1.9 s4-3.2
Using the equal variance assumption, can we say the standard deviations are
close enough to use ANOVA? (select all that apply)
O The assumption is not violated
O We can use ANOVA
O The assumption is violated
O We should NOT use ANOVÁ
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