There is a research to find the relationship with car retail price (Y) with only horsepower . A sample of 30 data was selected. Here are some output results: df SS MS F Sig F Regression 1 40.5 40.5 81 2.237E-12 Residual 28 14.2 0.5 Total 29 54.7 Coefficient Standard Error T statistic P-value Intercept -56 12.5 5.67 0.00004 Horsepower 195 23.4 9.23 2.237E-12 (a) What is the 90% confidence interval for the slope of Horsepower

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2