pattern test only please

pattern test only please

3.19. The City Square Grocery and Meat Market has a large meat locker in which a constant temperature of approximately 0 should be maintained. The market manager has decided to construct an R-chart to monitor the temperature inside the locker. The manager had one of the market employees take sample temperature readings randomly five times each day for 20 days in order to gather data for the control chart. Following are the temperature sample observations: 2 3 | Samples Temperature (F) 1 46.3 48.1 42.5 43.1 39.6 41.2 40.5 37.8 36.5 42.3 40.1 41.3 34.5 33.2 36.7 4 42.3 44.1 39.5 37.7 38.6 5 35.2 38.1 40.5 39.142.3 6 40.6 41.7 38.6 43.5 44.6 7 33.2 38.641.5 40.743.1 8 41.8 40.0 41.6 40.739.3 9 42.4 41.6 40.840.9 42.3 10 44.736.5 37-3 35-3 41.1 11 42.6 43.5 35.4 36.1 38.2 12 40.5 40.4 39.1 37.2 41.6 13 45.3 42.0 43.144.7 39.5 14 36.4 37.5 36.2 38.940.1 15 40.5 34.3 36.2 35.1 36.8 16 39.5 38.2 37.6 34.1 38.7 17 37.6 40.6 40.3 39.7 41.2 18 41.0 34.3 39.1 45.2 43.7 19 40.9 42.3 37.6 35.4 34.8 20 37.6 39.2 39.3 41.2 37.6 ala c. Construct an x-chart in conjunction with the R-chart, plot the sample observations, and, using both x- and R-charts, comment on the process control. 3.21. Use pattern tests to determine if the sample observations used in the x-chart in Problem 3-19(c) reflect any nonrandom patterns