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Question 1.6   Compare the ichthyosaurus fossil with the skeleton of the crocodile and write down one similarity and one difference you can see between them. Ichthyosaurus fossil Crocodile skeleton Click on the button below to open the picture of the fossil and skeleton. (2)

Essay grade                                Frequency A                                                     2 B                                                     6 C                                                      8 D                                                      4 F                                                        2 Total                                                 22 According to the above data, the frequency of students who got a grade B is = 6

Twenty people, including yourself, are to measure the width of a room to the tenth of millimeter. Assume that everyone uses the same well calibrated measuring device such as a tape measure. All measurements are not likely to be exactly the same; some will be higher than the true value and some lower. These differences represent  random errors. Can the process of averaging all the twenty measurements also help reduce reduce any systematic errors? The answer is “no”.

Identify the tubules labeled “A”.

Sharing of Cash Award. A technical design that pushed the state-of-the-art was entered in an annual Aluminum Association Competition. The development involved “early supplier involvement.” The supplier suggested the entry. They had been involved with a winning entry the previous year. They warned that determination at who would share the cash award in event of winning should be determined prior to submitting the entry. The subassembly that was to be entered had involved over a year of development by many design and manufacturing personnel. The individual level of involvement varied from a few hours of work to several man months. How is a cash award properly handled in such a situation? Should it be split 50/50 between the lead Design Engineer and the lead Advanced Manufacturing Engineer? Should it be divided to all involved in proportion to hours spent? Only the lead engineers are involved in preparing, submitting, and presenting the entry.

Essay grade                                Frequency A                                                     2 B                                                     6 C                                                      8 D                                                      4 F                                                        2 Total                                                 22 According to the above data, grade A is the mode.

Question 2.2   True or False: Inherited characteristics are always physical? (1)

Question 3.3   Give two ways a penguin is suited to swimming under the water. (2)

When we fail to reject the null hypothesis, it means that we do not have enough evidence to support the alternative hypothesis.

False Claim of Production Source. A major company was unsuccessful in bidding on a complex gyroscopic control system for a military aircraft. Using strong political connections with the White House, they forced a Pentagon level review of the evaluation. The proposal claimed all portions of the system were produced in company facilities. On a visit to one of the qualified suppliers of Rate Switching Gyros, Air Force personnel had witnessed production of units with name plates of the major supplier. The qualified supplier was a very small company. Is it ethical for a company to subcontract equipment and then claim in a proposal that it is produced in house? Where is the line drawn between a typical purchased subassembly which goes into a larger product?