QUESTION 36 A factory produces large plastic sheets. Each sheet is examined for the number of weak spots. The number of weak spots for 30 randomly selected sheets are given in the following table. Calculate the UCL and LCL for c-bar. 4 2 3 7 4 4 6 2 4 6 4 5 5 5 3 6 3 ww 3 4 5 2. 3 5 4 8 4 6 What is the total number of weak spots (or defects) observed in the 30 sheets? QUESTION 37 Refer to the Problem in question 36 What is the average number of weak spots per sheet? (Note: This is denoted by c-) QUESTION 38 Refer to the Problem in question 36 What is the value of s? (Note: In this case, the formula for calculating s involves c-) QUESTION 39 Refer to the Problem in question 36 What is the Upper Control Limit UCL(C)? (Note: Look for the formula that involves o- and s in the calculation of UCL) QUESTION 40 Refer to the Problem in question 36 What is the Lower Control Limit, LCLC)? (Note: Look for the formula that involves c- and s in the calculation of LCL)