2.- Si las estaturas de un conjunto de personas adultas se distribuyen aproximadamente conforme a una curva normal y si su promedio aritmético y desviación estándar son respectivamente; 1.62 y 0.03 metros. Encuentre: (valor \( 10 \% \) ) A) La probabilidad de que un clerto número de personas tengan una estatura entre 1.64 y 1.67 . B) La probabilidad de que un cierto número de personas tengan una estatura entre la media y \( x=1.66 \).

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

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

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

F-tests and t-tests are usually used to determine whether the experimental groups are significantly different from each other at a certain alpha level. True False

A significant result is one that has a low probability of occurring by chance (i.e. sampling error). False