True or False

1) in a population regression model, we assume the errors are independent of each other and normally distributed with constant variance

2) when we apply the ordinary least squares to estimate the slope and intercept of a linear model, the sum of all the residuals can be less than or greater than zero

3) if SSE is near zero in a regression, the statistician will conclude that the proposed model probably has too poor a fit to be useful

Which statement best describes the implied rights and duties of an employer that wishes to terminate an employment relationship without cause? ( under canadian law system)
a. Employers cannot be sued provided they provide two weeks of notice.
b. Employers cannot terminate without just cause.
c. Employers may terminate but must give reasonable notice.
d. Employers may terminate provided they have “near cause” and give reasonable notice.

A person is both myopic and hyperopic. He can see objects clearly only if they are between 30.5 cmcm and 80.0 cmcm .

Part A

What power of contact lens is required to read at the normal near point of 25 cm?

Express your answer using three significant figures.

Part B

What power of contact lens is required to see a distant oobject clearly?

Express your answer using three significant figures.

Which of these mutational changes do you think will have the greatest deleterious effect on the function of a gene? Explain your answer.

a) insertion of a nucleotide at the end of the coding sequence

b) removal of a single nucleotide near the start of the coding sequence

c) deletion of three consecutive nucleotides in the middle of the coding region

d) deletion of four consecutive nucleotides in the middle of the coding region

e) replacement of one nucleotide by another in the middle of the coding region

You are an audit senior in charge of your first audit and are wrapping up your work. The client's controller, a pretty fussy person, knows you're going to ask for a "representation letter" near the end of the audit which he thinks adds an unnecessary burden on him because he's already overworked. He says he won't comply with your request until you explain why an auditor needs a representation letter for every audit. 

1-The Large Hadron Collider in Europe smashes together near-light speed protons to discover new fundamental particles of nature. As part of the detection process, the “debris” from the collision is made to pass through a magnetic field. What is the purpose of this magnetic field?

2-If you are outside on a dark night you might see an aurora (i.e. northern or southern lights). What produces this display and why is it most common at middle to high latitudes?

Assignment Topic:

The big advantage to owning a home is that eventually (hopefully around retirement), you will no longer have a monthly payment for housing (although you will always have taxes and upkeep.) That said, home ownership is not always the good move.

Do you own, or hope to own in the near future? If not, what are your reasons for preferring to rent/lease? (20 pts.)

Submission Format

1. The length of your response is conditional on the question. Answer fully, but concisely.

Imagine you have two converging lenses. Lens A has a focal length of 12.5 cm. Lens B has a focal length of 50.0 cm. The diameter of each lens is 6.50 cm. Assume a near point of 25.0 cm.

a)     How could you make a microscope with 4x magnification using these lenses?

b)     How could you make a telescope with 4x magnification using these lenses?

c)     Which of these is more practical? Why?

The intensity of sunlight under the clear sky is 1030 W/m2 . How much electromagnetic energy is contained per cubic meter near the Earth’s surface? The speed of light is 2.99792 × 108 m/s. Answer in units of J/m3 .

What is the maximum radiation pressure that can be exerted by sunlight in space of intensity 3693 W/m2 on a flat black surface? The speed of light is 3 × 108 m/s. Answer in units of Pa.

Which of the following statements regarding prospecting theory is true? Explain why each statement is correct or incorrect.

a. Certainty is given low weight relative to near-certainty.
b. Prospect theory weights are exactly the same as the probabilities used in Expected Utility Theory.
c. The weighting function for losses can differ from the weighting function for gains.
d. A gains adds more to utility than an equal-sized loss subtracts from it.