In order to estimate with 95% confidence the expected value of y for a given value of x in a simple linear regression problem,a random sample of 10 observations is taken.Which of the following t-table values listed below would be used?

A) 2.228
B) 2.306
C) 1.860
D) 1.812

In the equation t₍₇₈₎ = 1.03,p < 0.01,what does p < 0.01 represent?

A) the obtained value
B) the critical value
C) the degrees of freedom
D) the level of significance

From the data given above,the sales forecast for the year 2008 (in 000s) is ________.

A) 40.72 units
B) 47.34 units
C) 52.67 units
D) 62.53 units

A $2,000 payment due 2 years ago and another $4,000 payment 18 months from now are to be replaced by a lump sum payment in 3 years. Using the financial functions on the calculator, determine the value of this payment if interest is at 2.4% compounded quarterly.

A) $6,000.34
B) $6,100.34
C) $6,200.34
D) $6,300.34
E) $6,400.34

Simplify and collect like terms:
$\frac{2x}{1.045}-\frac{2.016x}{3}+\frac{x}{2}$

Transform the absolute value equation $|x-15|=16$ into two linear equations.

A) $x+15=-16$ ; $x-15=-16$
B) $x+15=16$ ; $x+15=-16$
C) $x-15=16$ ; $x-15=-16$
D) $x+15=16$ ; $x-15=-16$
E) $x+15=16$ ; $x-15=16$