For a nomothetic causal relationship to exist, there must be evidence: A. of an empirical correlation between the variables B. that one variable precedes the other in time C. that a third variable did not cause the changes observed in the first two variables D. of an empirical correlation between the variables, one variable precedes the other in time, and a third variable did not cause the changed observed in the first two variables E. of an empirical correlation between the variables and that one variable precedes the other in time

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

What is 140% of 25? because i need

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.