INVICTV VITY Editing Dv Arial 10 , Av v abe General THE ES B Sales Data 1 2 3 Month Point Estimates Formulas Used 4 Units Sold 1 94 2. 100 85 4 94 5 92 Mean (1 decimal) #N/A Standard Deviation (2 decimal) #N/A W S88 No con WN- 12 21 22 A sample of 5 months of sales data can be found in Excel below: HAHI Open spreadsheet a. Develop a point estimate of the population mean number of units sold per month (to 1 decimal). b. Develop a point estimate of the population standard deviation (to 2 decimals). Check My Work Reset