Answer:
Step-by-step explanation:

Pooled proportion

The hypothesis null would be

Alternate can be either not equal to or < or > according to need
Std error for difference of proportions

Hence test statistic = p difference/std error
= 
where p is given as above as combined proportion.
Answer:its 10 :)
Step-by-step explanation:
I think it’s 20, 700, 000.
Answer:
B is the correct answer.
Step-by-step explanation:
B has all terms of x.
Answer:
-5, 4.1, 4.7, 16 squared
Step-by-step explanation:
negative numbers are always the least, then 4.1 is less than 47/10 which is 4.7 and 16 squared which is 256, then we have 4.7 because that is less than 256 which is the greatest number.