Im guessing the first answer
487 + 310 ≈ 500 + 300 ≈ 800
Answer:
Test statistic,
(to 3 dp)
Step-by-step explanation:
Deviation, d = x -y
Sample mean for the deviation


Standard deviation: 


SD =2.93
Under the null hypothesis, the formula for the test statistics will be given by:


Answer:78% countries
Step-by-step explanation:
Answer:
can you be more specific? give a problem
Step-by-step explanation: