The New York Times article "Modern German Duty: The Obligation to Play" reports that "Germans work fewer hours per year than anybody else in the advanced industrial world—1,557 hours a year in the former West Germany, compared with 1,605 for France, 1,683 for Britain and more than 1,900 for the United States . . ."29

a. Find the difference in mean hours worked per year, Americans minus Germans, and divide by 40 to find approximately how many fewer workweeks there are for Germans.

b. Tell whether the variable for hours worked is explanatory or response, and whether it is quantitative or

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000

The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set

The length of a rectangle is 2 inches more than twice it’s width. if the perimeter of the rectangle is 70 inches, find it’s length and width