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: 0.511 mg/L , 0.485 mg/L , 0.509 mg/L , 0.491 mg/L , and 0.521 mg/L . Determine the mean and 90% confidence interval for the average fluoride concentration in this sample.

Mean = 0.503

Confidence interval = 0.513, 0.493

Explanation:

Further explanations and calculations are found in the attachment below

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.