The hemoglobin content of blood is about 15.4g/100mL blood. The molar mass of hemoglobin is about 64500 g/mol, and there are four iron (Fe) atoms in a hemoglobin molecule.Approximately how many Fe atoms are present in the 6 L of blood in a typical adult? [(15.5g / 100ml]) * ([...
September 28, 2014
a restaurant that bills its house account monthly is concerned that the average monthly bill exceeds $200 per account. A random sample of twelve account is selected, resulting in a sample mean of $220 and a standard deviation of $12. Use a= 0.05. what is the critical value for...
December 11, 2012
one of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company beleives that the tire actually lasts more than 40,000 miles. A sample of 49 tires reveales that the mean number of miles is 45,000 ...
December 10, 2012