Answer:
The correct option is a
Step-by-step explanation:
From the question we are told that
The sample size is n = 415
The sample proportion is 
Now
The null hypothesis is 
The alternative hypothesis is 
The test statistics is mathematically evaluated as
substituting values
Answer:
for the fist slide the answer is a
Step-by-step explanation:
It’ll take erica 60 minutes (an hour) to do 30 math problems and it’ll take penny 50 minutes to do 30. but together, it should take about 45-55 minutes to do 30
Answer:
the answer is 100
Step-by-step explanation:
you have to multiply 20x5
hope the helps :)