Mathematics, 13.08.2019 06:20, Bgreene2377
Astudy found that, in 2005, 12.5% of u. s. workers belonged to unions (the wall street journal, january 21, 2006). suppose a sample of 400 u. s. workers is collected in 2006 to determine whether union efforts to organize have increased union membership. formulate the hypotheses that can be used to determine whether union membership increased in 2006.
Answers: 3
Mathematics, 21.06.2019 16:00, ashl3yisbored
Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e. g. 98.765).
Answers: 3
Mathematics, 22.06.2019 01:00, sdwhitneyhillis
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
Astudy found that, in 2005, 12.5% of u. s. workers belonged to unions (the wall street journal, janu...
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