Online gaming, I A random sample of 1100 teenagers (aged 12 to 17) were asked whether they played games online; 775 said that they did. (a) Construct and interpret a 99% confi dence interval for the population proportion p. (b) Suppose that the results of the survey were used to construct separate 99% confi dence intervals for boys and girls. Would the margins of error for those two confi dence intervals be the same as, larger than, or smaller than the margin of error for the interval you constructed in (a)? Justify your answer. (c) In the context of this exercise, describe a real-world issue that isnt included in the margin of error.
Chemistry Notes Week 13 NOTE: May 1st- Chemistry final review session An oxidation-reduction (or redox) reaction is a chemical reaction in which electrons are transferred from one reactant to another A. Oxidation is the loss of electrons B. Reduction is the gain of electrons 2+ C. Reducing agents (Zn loses two electrons and is oxidized to Zn ) 2+ D. Oxidizing agent (Cu gains two electrons and is reduced to Cu) E. A redox reaction is the sum of an oxidation half-reaction and a reception half- reaction The oxidation number is the charge an atom if electron were transferred completely A. H2(g) + F2(g) —>
