The polling organization ipsos conducted telephone surveys in march of 2004, 2005 and 2006. in each year, 1001 people age 18 or older were asked about whether they planned to use a credit card to pay federal income taxes that year. the data are given in the accompanying table. is there evidence that the proportion falling in the three credit card response categories is not the same for all three years? test the relevant hypotheses using a .05 significance level. (use 2 decimal places.)intent to pay taxes with a credit card 2004 2005 2006definitely/probably willmight/might not/probably notdefinitely not 46168764 47181799 41186784χ2 =

3100

step-by-step explanation:

hello!

to begin with, we're given that on earth, a rock weighs 20 pounds, and while on jupiter, that same rock weighs 42 pounds. now, we're trying to find the weight of a rock that weighs 10.5 pounds on earth, on jupiter.

to solve this, first, set up a proportion, cross-multiply, and solve it algebraically.

setting up the proportion is the hardest and the most confusing part of the problem, but it's simple.

if on earth, the rock weighs 20 lbs, and on jupiter it weighs 42 lbs, our first part of our proportion is 20/42 lbs. the second part has to be equal to each other. this means that 10.5 has to be on the numerator of the fraction, and x, the value we're trying to find, has to be on the denominator. remember that the rock weighs 10.5 lbs on earth, and we're trying to find the weight of it on jupiter (which is x).

20/42 = 10.5/x

next, you would cross-multiply.

20x = 42(10.5)

20x = 441

now, solve it algebraically by using division.

x = 22.05 lbs

this can be rounded to 22.1 lbs.

therefore, the weight of the rock on jupiter is 22.1 lbs, the fourth choice.

answer is  

a.

5.56

hope you get this right.