The cost of a home depends on the number of bedrooms in the house. suppose the following data is recorded for homes in a given town price (in thousands) 300 250 400 550 317 389 425 289 389 559 no. bedrooms 3 3 4 5 4 3 6 3 4 5 a) make a scatterplot b) fit the data with a least squares regression line. c) give a 95% confidence interval for the slope. d) if one house has one more number of rooms than another house, how much additional cost would we expect for the price? e) test the hypothesis that an extra bedroom costs $60,000 against the alternative that it costs more.

Ican interpret and represent the remainder in division calculations sensibly for the context (eg if we wont to know how many 40 seat buses will be needed to transport 170 students for on excursion, we divide 170 by 40 and realise buses and another smaller vehicle to that we need 4 transport 10 more students) solve the following questions. show your work! 11) the zoo had 420 butterflies that needed to be transported to a new enclosure. the boxes that the butterflies would be moved in only hold 80 butterflies in each. how many boxes would they need? 2 12) each classroom in the school can have exactly 25 students, if there are 345 students in the school how many full classrooms are there?