The overall distance traveled by a golf ball is tested by hitting the ball with iron byron, a mechanical golfer with a swing that is said to emulate the legendary champion, byron nelson. ten randomly selected balls of two brands are tested and the overall distance measured. assume that the variances are equal. the data follow: brand 1: 288 278 287 271 283 271 279 275 263 267 brand 2: 261 238 260 265 273 281 271 270 263 268 (a) is there evidence to show that there is a difference in the mean overall distance of brands? use (b) calculate a 95% two-sided confidence interval on the difference in mean overall distance. round your answer to one decimal place (e. g. 98.7

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.