Answer:
0
Step-by-step explanation:
150 + 170 + 30 = 350
170 + 30 = 200
200 + 150 = 350
Hope this helps! :)
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,
Answer:23
Step-by-step explanation: