Each of three operators made two weighings of several silicon wafers. Results are presented in the following table for three of the wafers. All the wafers had weights very close to 54 g, so the weights are reported in units of jug above 54 g. (Based on the article “Revelation of a Microbalance Warmup Effect," J. Buckner, B. Chin, et al., Statistical Case Studies for Industrial Process Improvement, SIAM-ASA, 1997:39-45.)

Wafer |
Operator 1 |
Operator 2 |
Operator 3 |
|||

1 |
11 |
15 |
10 |
6 |
14 |
10 |

2 |
210 |
208 |
205 |
201 |
208 |
207 |

3 |
111 |
113 |
102 |
105 |
108 |
111 |

a. Construct an ANOVA table. You may give ranges for the P-values.

b. Can it be determined from the ANOVA table whether there is a difference in the measured weights among the operators? If so, provide the value of the test statistic and the P-value. If not, explain why not.

Week 9 Q: Which type of work out equipment leads to an effective muscle fitness workout Free weights, machine weights, body weight/calisthenics, stability balls, resistance bands Free Weights vs. Machines - Muscular strength and endurance can be developed using both - Exercise machines are generally o Safer, convenient, safe to use - Free weights o Require more care, balance, and coordination o Strength transfers to daily activities Q: Dynamic exercise (isotonic/isometric) involves a muscle contraction with change in the length of the muscle. Isotonic Dynamic vs. Static Strength Training 1. Dynamic a. Muscle contractions b. Change in the length of muscle c. Involves 2 types of cont