what is the mean

Directions Using the information from the following scenario, conduct a one-way ANOVA and specify the LSD post hoc test. Scenario The superintendent is continuing to examine the data that has been reported for the district. Another question concerned the differences in performance on high stakes tests. To examine this issue, the superintendent obtained the average scale scores for schools that participated in the high stakes testing for the district and two comparison districts. The following scores were collected: Superintendent's District Comparison District 1 Comparison District 2 332 324 324 317 307 307 320 277 277 344 333 333 314 300 300 330 302 302 291 320 320 302 291 291 286 296 296 318 327 327 320 304 304 327 277 277 283 284 284 322 276 276 Questions 1. What is the mean scale score for each district? Superintendent's District What is the standard deviation of the scale scores for each district