Varatta Enterprises sells industrial plumbing valves. The following table lists the annual sales amounts for a portion of the salespeople in the organization for the most recent fiscal year. Click on the datafile logo to reference the data. DATA file Salesperson. Joseph Jennifer Phillip Stanley Luke Lexie Sales Amount ($1000) Salesperson Sales Amount ($1000) 468 415 thousand thousand thousand 125 244 576 318 Wel Samantha Erin Dominic Charlie Amol Lenisa 235 323 264 179 Margaret 355 a. Compute the mean (in $1000), variance (in $10002), and standard deviation (in $1000) for these annual sales values. Round your answers to the nearest whole number. 186 211 431 Mean Variance Standard deviation S b. In the previous fiscal year, the average annual sales amount was $292 thousand with a standard deviation of $95 thousand. Discuss any differences you observe between the annual sales amount in the most recent and previous fiscal years. (1) The difference in the mean annual sales amount is very small and is most likely due to random change in demand for these products. (1) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly higher. (iii) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly lower. Choose the correct option. -Select your answer- 0