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).
So 0.25 is essentially 25/100. Divide 25 from the top and bottom to get 1/4
Answer:
Step-by-step explanation:
SP = CP + markup
- 155 + 30% =
- 155*1.3 =
- 201.50
Answer:
z = 6.94
Step-by-step explanation:
3.4z + 6.3 = -1.7z + 41.7
5.1z = 35.4
z = 6.94
Answer:
Domain: (-2, ∞)
Step-by-step explanation:
