In 1945, an organization asked 1490 randomly sampled American citizens, "Do you think we can develop a way to protect ourselves from atomic bombs in case others tried to use them against us?" with 771 responding yes. Did a majority of the citizens feel the country could develop a way to protect itself from atomic bombs in 1945? Use the \( \alpha=0.01 \) level of significance. What are the null and alternative hypotheses? (Type integers or decimals.)

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

Which of the following is/are part of descriptive statistics? central tendency. variability. linear regression. correlation. all of the above.

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