Answer: 601
Step-by-step explanation:
The formula to find the minimum sample size(n) , if the prior population proportion is unknown:
, where E = margin of error , = critical z-value for confidence level c.
Given : E = 0.04
Z-value for 95% confidence = 1.96
So, the minimum sample size required =
Hence, the minimum sample size required = 601
Answer:
it took 60 minutes to fill up 800 gallons of water???
If there are 4 people and you want the time for EACH person then you would do 62.59
Which = 15.6475
Answer:
p= 1/4 or 0.25
Step-by-step explanation: