In a recent year, a poll asked 2603 random adult citizens of a large country how they rated economic conditions. in the poll, 22% rated the economy as excellent/good. a recent media outlet claimed that the percentage of citizens who felt the economy was in excellent/good shape was 19%. does the poll support this claim?
a) test the appropriate hypothesis. find a 90% confidence interval for the proportion of adults who rated the economy as excellent/good. check conditions.
b) does your confidence interval provide evidence to support the claim?
c) what is the significance level of the test in b? explain.

G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =

15 liters is approximately how many gallons