Test Your Knowledge On Testing Your Data
1.
A research team runs an experiment to determine if a new security system is more effective
than the previous version. What type of results are required for the experiment to be statistically significant?
Results that are real and not caused by random chance (Correct)
Results that are unlikely to occur again
Results that are inaccurate and should be ignored
Results that are hypothetical and in need of more testing
2.
In order to have a high confidence level in a customer survey, what should the sample size accurately reflect?
The most valuable members of the population
The trends from other customer surveys
The predictions of stakeholders
The entire population (Correct)
3.
A data analyst determines an appropriate sample size for a survey. They can check their work by making sure the confidence level percentage plus the margin of error percentage add up to
100%.
True
False (Correct)
