An economist wishes to test the claim that less than 20% of workers find their jobs through newspaper ads. A significance level of .05 will be used for the test. a) The hypotheses for this test will be
b) The test is
c) In a sample of 600 workers, it was found that 18% found their jobs through newspaper ads. Based on this, the p-value is
d) Using this p-value, the decision is to
e) Based on this decision, we can conclude that

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document