During a routine check of the fluoride content of gotham city's water supply, the given results were obtained from replicate analyses of a single sample: 0.90900 mg/l , 0.88900 mg/l , 0.91300 mg/l , 0.88700 mg/l , and 0.91900 mg/l . determine the mean and 90% confidence interval for the average fluoride concentration in this sample. report the mean and the confidence interval with three significant figures.
mean:
90% confidence interval:
Answers: 3
Another question on Chemistry
Chemistry, 21.06.2019 20:50
Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend
Answers: 1
Chemistry, 22.06.2019 08:30
For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)
Answers: 2
Chemistry, 22.06.2019 13:50
Read the chemical equation. 2c2h2 + 5o2 β 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
You know the right answer?
During a routine check of the fluoride content of gotham city's water supply, the given results were...
Questions
Health, 19.03.2020 10:33
History, 19.03.2020 10:33
Chemistry, 19.03.2020 10:33
English, 19.03.2020 10:33
Mathematics, 19.03.2020 10:33
Mathematics, 19.03.2020 10:33
Biology, 19.03.2020 10:34
Mathematics, 19.03.2020 10:34
Mathematics, 19.03.2020 10:34
Computers and Technology, 19.03.2020 10:34
English, 19.03.2020 10:34
Mathematics, 19.03.2020 10:34
Chemistry, 19.03.2020 10:34
Mathematics, 19.03.2020 10:34
Arts, 19.03.2020 10:34
