Question

True or False

a.) R squared=0 meants that there is no relationships between the two variables.

b.) Using the linear regression line, y= a+bx+e, if a=0 and e = 0 then R squared = 0.

c.) In one-way ANOVA, a typical null hypothesis is: all means of groups are equal .

d.) In a recent twin study from researchers at King’s College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis, one-way ANOVA is preferred than the two group t-test.

Answer 1

a )  R squared=0 means that there is no relationships between the two variables.

------------------------------ TRUE

b )  Using the linear regression line, y= a+bx+e, if a=0 and e = 0 then R squared = 0.

----------------------------------------- FALSE

c )   In one-way ANOVA, a typical null hypothesis is: all means of groups are equal .

------------------------------------- TRUE

d )  In a recent twin study from researchers at King’s College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis, one-way ANOVA is preferred than the two group t-test.

-------------------------------------------- FALSE