The following information is obtained from two independent samples selected from two normally distributed populations. n1 = 18 x1 = 7.82 σ1 = 2.35
n2 =15 x2 =5.99 σ2 =3.17

test at a 5% significance level if the two populations means are different

Step 1 of 2 : find the two-period moving average for year 2008. if necessary, round to one more decimal place than the largest number of decimal places given in the data.yeardeaths200017133200117382200215001200311312200415261200513367200614693200716731200813735

Cartels control the production and pricing of goods mainly through a) the elimination of competition. b) the cooperation of their members. c) the limitation of price controls. d) the manipulation of government pressure.

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