Answer:
A sample size of 2080 is needed.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
98% confidence level
So , z is the value of Z that has a pvalue of , so .
Based on previous evidence, you believe the population proportion is approximately 60%.
This means that
How large of a sample size is required?
We need a sample of n.
n is found when . So
Rounding up
A sample size of 2080 is needed.
Answer:
31.) you put a dot on one and go to the right
32.) you put a dot on ten and go to the left
Step-by-step explanation:
the absolute value part is honestly just to throw u off, it also helps if you read it aloud. so for example in # 31. is saying the absolute value of b minus 5 is greater or equal to 1, you could also think of it as any number is greater or equal to one. hope that helps!
Answer:
79°
Step-by-step explanation:
It is identical to the bottom corner