A new industrial oven has just been installed at Piatt Bakery.To develop experience regarding the oven temperature, an inspectorreads the temperature at four different places inside the oven eachhalf hour starting at 8:00 a.m. The last reading was at 10:30 a.m.,for a total of six samples. The first reading, taken at 8:00 a.m.,was 337 degrees Fahrenheit. (Only the last two digits are given inthe following table to make the computations easier.)
| Reading |
| Time | 1 | 2 | 3 | 4 |
| 8:00 a.m. | | | 37 | | | 43 | | | 44 | | | 40 | |
| 8:30 a.m. | | | 45 | | | 42 | | | 43 | | | 40 | |
| 9:00 a.m. | | | 43 | | | 49 | | | 40 | | | 44 | |
| 9:30 a.m. | | | 45 | | | 43 | | | 47 | | | 41 | |
| 10:00 a.m. | | | 35 | | | 48 | | | 49 | | | 63 | |
| 10:30 a.m. | | | 45 | | | 42 | | | 46 | | | 49 | |
|
1. On the basis of this initial experience, determine thecontrol limits for the range. (Round your intermediatecalculations and final answers to 2 decimal places.)
2. For each time period, is the temperature out of control?
| 8:00 A.M. | |
| 8:30 A.M. | |
| 9:00 A.M. | |
| 9:30 A.M. | |
| 10:00 A.M. | |
| 10:30 A.M. | |
Thank you!!
