5. Martin Dresner works for a cookie company which uses a small amount of vanilla flavoring...

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5. Martin Dresner works for a cookie company which uses a small amount of vanilla flavoring to produce some of their cookies. Some customers have been complaining about inconsistent taste and quality of the cookies produced by the company. To investigate this, the managers of the cookie company have ordered Martin to investigate the process which adds vanilla to the cookie dough. The table below lists measurements Martin took. (Total 20 points) Sample 1 2 3 4 5 6 7 8 9 10 10 9 9 12 12 11 13 9 10 8 11 10 8 10 12 9 8 11 11 8 12 9 8 10 11 13 9 10 11 10 9 10 10 11 13 8 8 11 11 10 13 8 10 11 9 10 11 10 9 11 a. Construct a control chart for the process mean. Is the process mean in control? Why or why not? (10 Points) b. Construct a control chart for the process variance. Is the process variance in control? Why or why not? (10 Points) 5. Martin Dresner works for a cookie company which uses a small amount of vanilla flavoring to produce some of their cookies. Some customers have been complaining about inconsistent taste and quality of the cookies produced by the company. To investigate this, the managers of the cookie company have ordered Martin to investigate the process which adds vanilla to the cookie dough. The table below lists measurements Martin took. (Total 20 points) Sample 1 2 3 4 5 6 7 8 9 10 10 9 9 12 12 11 13 9 10 8 11 10 8 10 12 9 8 11 11 8 12 9 8 10 11 13 9 10 11 10 9 10 10 11 13 8 8 11 11 10 13 8 10 11 9 10 11 10 9 11 a. Construct a control chart for the process mean. Is the process mean in control? Why or why not? (10 Points) b. Construct a control chart for the process variance. Is the process variance in control? Why or why not? (10 Points)