People were polled on how many books they read the previous year. Initial survey results indicate that s=15.9 books. Complete parts (a) through (d) below. A. Doubling the required accuracy nearly quarters the sample size. B. Doubling the required accuracy nearly quadruples the sample size. D. Doubling the required accuracy nearly halves the sample size. (d) How manting the required accuracy nearly doubles the sample size. confidence? This \( 99 \% \) confitical values.

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

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

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

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

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