Author Question: If a difference seen in sample results is statistically significant it means that a. there is an ... (Read 164 times)

james0929 · **on:** Jul 24, 2018

If a difference seen in sample results is statistically significant it means that
a. there is an important difference in the sample results.
b. there is an important difference in the population.
c. the difference observed in the sample was unlikely to have occurred if there is no difference in the population.
d. there is an important difference in the population that wasn't reflected in the sample results.

Question 2

Does Prayer Lower Blood Pressure was a question asked in Case Study 1.5 . The moral of the story was
a. cause-and-effect conclusions can generally be made in an observational study.
b. cause-and-effect conclusions cannot generally be made in an observational study.
c. cause-and-effect conclusions can generally be made in an experiment.
d. cause-and-effect conclusions cannot generally be made in an experiment.