Answer:
(i) She gives each student a pretest. Then she teaches a lesson using a computer program. Afterwards, she gives each student a posttest. The teacher wants to see if the difference in scores will show an improvement.
Step-by- Step
The situation is a case of matched or paired samples since the samples are dependent. The two measurements are drawn from the same pair of individuals The parameter that is tested using matched pairs is the population mean and this is what teacher intends to use a hypothesis test for.
It's B, I'm doing my online school assignment and this was the correct answer.
9x40= 360
9x30= 270 so the common factor is 9 I have no idea about the exponent stuff
Answer:
1,2,3,6 are congruent
Step-by-step explanation:
Answer:
im thinking its how many toys you need in each group?
Step-by-step explanation:
