Answer:
To use a paired t-test
Step-by-step explanation:
t-tests are essentially tests carried out to compare two different groups to check if there is a major difference in their performances or results which may be related in certain characteristics.
A paired (correlated) t-test is used when there are matched pair of similar units or instances of repeated measurements.
In this case, Mary has to use a paired t-test because the samples (students) have high similarity in characteristics. The students in question has to be from the same class to test her hypothesis (similar characteristics).
Answer:
False
Step-by-step explanation:
Because the question says you pick a <u>different</u> shirt on Tuesday than on Monday, that means you have one less shirt you can select, so the event is dependent.
-12d+1 is the answer I think. If not then I apologize.....
How many was to make49 out of ones and tens
Answer:Q(5,-2), S(-3,4)
Step-by-step explanation:
(-3,-4) is in the third quadrant so reflected over the x-axis results in it being in the second quadrant so only the y changing to positive giving you (-3,4)
(5,2) is in the first quadrant so when reflected over the x-axis it ends up in the fourth quadrant making y turn to negative giving you (5,-2)
