(a) s=(b) IQS=

Homework Part 1 of 4 points @ Points: 0.6 of T cellular phone company monitors monthly phone usage. The following data represenl the monthly phone use in minutes of 333 522 517 441 510 la no particular customer forthe past 20 months. Use the given data to answer parts (a) and (b). 406 348 508 407 406 ' 560 537 550 455 485 552 344 481 45! 366 a) Determine the standard deviation and interquartile range of the data. 5 =D (Round to two decimal places as needed.)