The solution of the equations is the coordinates of the point where the two lines intersects, so the required solution is :
Sunscreen should be applied every 2 hours. Over the summer, Cece spends at least 84 hours outside.
1 answer:
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Answer:
0.0208<p<0.0592
Step-by-step explanation:
-Given the sample size is 400 and the desired proportion is 16.
-The confidence interval can be determined as follows:
#We the use this proportion to find the CI at 95%:
Hence, the 95% confidence interval is 0.0208<p<0.0592