We would like to know the average amount of time students spend studying for their classes each week. a random sample of 100 students are surveyed. they reported spending an average of 7.6 hours studying, with s = 1.2 hours. based on these data, find a 95% confidence interval for the average amount of time a student studies for classes each week.

The triangles are similar. what is the value of x? show your work.

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%

Ahiking trail is 6 miles long. it has 4 exercise stations, spaced evenly along the trail. what is the distance between each exercise station?