Proportion of of customers using self-service pumps
In order to determine the proportion of of customers using self-service pumps, a gas station wants to find the number of customers she must survey so her margin of error is no more than 8% and her confidence level is 90%.
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Hexane and pentane form an ideal solution. The vapor pressures of pure hexane and pentane are 145 torr and 511 torr, respectively. A solution is prepared by mixing the 1.00 moles of hexane with 2.00 moles of pentane.
Calculate the boiling points and freezing points of a 1.17m solution of naphthalene in the benzene? Where the freezing point of benzene is 5.5 and the boiling point of benzene is 80.1
The following Data was gathered to find out whether or not Nassau Community College Students work 18 hours per week :
Discuss the trend in the electron affinities and ionization enthalpies across the third short period (Na through Ar). Discuss in detail.
Calculate the screening constants and the effective nuclear charges for: Explain how do these values are relate to each other?
Compute the (exact) probability that at most one of them will be defective, Compute the same probability using Poisson "approximation.
Determine the Henry's Law constant if the solubility of N2 in blood at 37C and at a partial pressure of 0.80atm is 5.6x10^-4 mol/L.
Determine the difference between the reliability of a measure and the validity of measure? Determine the difference between test-retest reliability and split-half reliability?
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