To study the weight accuracy of a 50lb fertilizer bag, 12 samples of 12 bags of fertilizer in each sample were taken and the results are as follows. The "R" for the table is for Range. The first range is 1.1, then 1.31 etc. The Mean is 47, then 46, then 46 etc.

	Mean R
Sample 1	47	1.1
Sample 2	46	1.31
Sample 3	46	0.91
Sample 4	47	1.1
Sample 5	48	1.21
Sample 6	50	0.82
Sample 7	49	0.86
Sample 8	49	1.11
Sample 9	51	1.12
Sample 10	52	0.99
Sample 11	50	0.86
Sample 12	51	1.2

The overall average weight of a bag of fertilizer is__pound, and the average range is__pound. The upper control limit for a 99.7% control chart for the mean is___pound, and the lower control limit is____pound. The upper control limit for a 99.7% control chart for the range is___pound, and the lower control limit is___pound.