WEEK 1 QUIZ
1 A correlational study is used to examine the relationship between two variables
but cannot determine whether it is a cause-and-effect relationship. True
2. A recent study reports that students who just finished playing a prosocial video
game
What differentiates a z test Statistic for a population from the z statistics for a sampling of means? Why
the difference?
You must know the standard deviation of the population and your sample size must be above 30 in order
for you to be able to use the
Write a correct alternative hypothesis for: Ho: 35.
Ha: > 35.
Answer True if the statement is always true. If the statement is not always true, replace the underlined
words with words that make the statement always true.
1 is known as the level of signifi
Describe whether the following study would most likely be observational or experimental, and why it
would be so.
Babies were monitored in the nursery for varying hunger patterns.
This statement would be considered as an observational study. An observation
Describe whether the following study would most likely be observational or experimental,
and why it would be so.
* One group is given Stilbesterol, the other nothing, to see which grows faster.
An observational study does not try to modify the subject bei
Describe whether the following study would most likely be observational or experimental,
and why it would be so.
* One group is given Stilbesterol, the other nothing, to see which grows faster.
An observational study does not try to modify the subject bei