Mathematics, 14.04.2020 19:59 Har13526574
Acid rain caused by reaction of air pollutants with rainwater appears to be a growing problem in the northeastern United States. Pure rain falling through clean air registers a pH value 5.7(pH is measure of acidity (0 is acid; 14 is alkaline). Suppose water samples from 40 rainfalls are analyzed for pH, and x (bar) and s are equal to 3.7 and .5 respectively. For a 99% confidence Interval for the mean pH in rainfall, what is the width of the interval?
Answers: 2
Another question on Mathematics
Mathematics, 22.06.2019 00:30
The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons
Answers: 2
Mathematics, 22.06.2019 02:30
For every touchdown scored by the timberwolves the mascot does three backflips if the cheerleaders set off six confetti cannons how many touchdowns did the timberwolves score if the cheerleader set of 18 confetti cannons
Answers: 1
Mathematics, 22.06.2019 03:30
What is the benefit of converting measures in a ratio to the same unit
Answers: 1
You know the right answer?
Acid rain caused by reaction of air pollutants with rainwater appears to be a growing problem in the...
Questions
Business, 29.07.2019 09:00
History, 29.07.2019 09:00
History, 29.07.2019 09:00
History, 29.07.2019 09:00
History, 29.07.2019 09:00
English, 29.07.2019 09:00
Biology, 29.07.2019 09:00
