The mean weight of newborn infants at a community hospital is 6.6 pounds. a sample of seven infants is randomly selected and their weights at birth are recorded as 9.0, 7.3, 6.0, 8.8, 6.8, 8.4, and 6.6 pounds. does the sample data show a significant increase in the average birthrate at a 5% level of significance?

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2