subject
Mathematics, 28.11.2019 05:31 measheaj

Apreliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted. seven employees were included from area a, 9 from area b, and 12 from area c. the test statistic was computed to be 4.91. what can we conclude at the 0.05 level? a. mean hourly wages in at least 2 metropolitan areas are differentb. more degrees of freedom are neededc. mean hourly wages of unskilled employees of all areas are equald. none of these is correct

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
image
Mathematics, 21.06.2019 20:00, guccim5971
Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books
Answers: 1
image
Mathematics, 21.06.2019 21:10, maylasia
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
image
Mathematics, 21.06.2019 21:30, b00n4l1f3
Plz ( true - false) all triangles have interior angles whose measure sum to 90.
Answers: 2
You know the right answer?
Apreliminary study of hourly wages paid to unskilled employees in three metropolitan areas was condu...

Questions in other subjects:

Konu
Mathematics, 30.11.2020 23:50