Answer: 554
Step-by-step explanation:
If prior population proportion is known, then the formula to find the sample size is given by :-

As per given description, we have
p= 0.1
E=0.025
Critical z-value for 95% confidence : 
Then,

Hence, the minimum sample size required = 554.
Answer:
since you know the amount he swims for 2 mins then divide that amount to get the amount for 1 minute. so 2=0.10 which means 1=0.5 since you halved it.
<em>Hope this helps!</em>
Answer: Can you translate for me? I don't know spanish.
Step-by-step explanation:
:)
You could add 6 togetber 17 times? Sorry for the stupid answer I couldn't think of anything else I searched it up and I couldn't find anything at all

The answer is C. (-6, -3)
Hope this helps.
r3t40