Answer:
95% confidence interval: (0.325 ,0.383)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 231
Sample mean = 0.354 ppm
Sample standard deviation = 0.231 ppm
95% confidence interval:
Putting the values, we get,
The answer is one solution
The 8 is in the tenths place it would look like 8/10 .8 its .08 for 8/100
0.7154 is the product for 0.98×0.73
Answer:
there's nothing here to answer