Point estimate for the difference between two population proportions is the difference between the two sample proportions, written as:
and the standard deviation is given by
When np and n(1-p) is greater than 5, then the sampling distribution is approximately normal and we can use standard normal methods.
Thus, the propability of a test <span>for the difference between two population proportions is given by
</span>
Answer:
25%
Step-by-step explanation:
25% of 60 is 15 because 15 is 1/4 of 60 and 1/4 is 25%
Answer:
x=5
y=1
Step-by-step explanation:
3*5=15
5*1=5
15+5=20
Answer:
4
Step-by-step explanation:
hi! let's divide -24 and -6 to simplify this. this is the same answer as 24/6 since two negatives that are divided by each other equal a positive number, and 24 divided by 6 is 4, so the answer is 4.