The HIM department has been approached by the manufacturer of the scanning software with an offer to purchase their new model. The company claims the new machine is much more efficient and can scan more documents per minute than the current model and they are willing to let your department try it for a month. The CEO wants data on this efficiency before considering the price. January Old 20 16 25 15 8 60 65 24 35 48 35 61 33 36 29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 New 25 35 25 14 40 20 60 29 48 57 62 19 35 39 47 January 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Old 39 49 60 60 55 51 60 34 55 45 21 13 15 45 40 21 New 25 24 36 60 59 12 45 59 24 65 54 39 40 58 40 24 1. What is the null hypothesis? 2. What data do you need to calculate before you can run a Z-test? 3. Run a Z-test and place the output in cell D10 4. Do you accept or reject your null hypothesis? 5. Why?