You run a regression analysis on data with two variables and you obtain the regression equation \[ \hat{y}=-2.008 x+52.317 \] with a correlation coefficient of \( r=-0.02 \). You want to predict the value for the response variable for a value of 110 as the explanatory variable. What is the predicted response value? \( \hat{y}=\square \)

When the results of a research study are statistically significant, the researcher's report will be automatically accepted for publication in a scientific journal. True

For an experiment comparing more than two treatment conditions or more than two groups, you should use analysis of variance (ANOVA), rather than separate \( t \) tests. True False

Classifying subjects on the basis of gender is an example of what kind of measurement scale? nominal. ordinal. interval. discrete. continuous.

A statement that the independent variable had no effect is called the alternative hypothesis. True False

Cite as características que um bom diagrama de dispersão deve ter para facilitar a interpretação dos dados.