Lisa is a new food services manager at a university, and her first project is to investigate the quality of the meals. She conducted a 10-day survey, asking students to simply indicate whether the meal was either good or bad (defective). The results are as follows:

December 1	6261	1,000
December 2	65	1,000
December 3	61	1,000
December 4	53	1,000
December 5	63	1,000
December 6	52	1,000
December 7	39	1,000
December 8	48	1,000
December 9	37	1,000
December 10	59	1,000

538 10,000

a. Determine the %media:formula85.mml%, S_p,UCL,and LCL based on the questionnaire results, using a confidence interval of 95.5 percent (+/- two standard deviations).

p-bar
Sp
UCL
LCL