⟩ In autonomic nervous system the sympathetic preganglionic neurons leave the spinal cord via the dorsal roots of spinal nerves T1-L3
False
False
Which of the following would be most likely to produce selection bias in a survey?
Which one of the following variables is not categorical?
Which of the following is a confounding variable in this study?
The two treatments in this study were?
If a statistically significant difference in blood pressure, change at the end of a year for the two activities was found, then?
Scenario A randomized experiment was done by randomly assigning each participant either to walk for half an hour three times a week or to sit quietly reading a book for half an hour three times a week. At the end of a year, the change in Participants blood pressure over the year was measured, and the change was compared for the two groups.?
The value of a correlation is reported by a researcher to be r = -0.5. Which of the following statements is correct?
What is the effect of an outlier on the value of a correlation coefficient?
One use of a regression line is?
Which of the following would indicate that a dataset is not bell-shaped?