When a distribution has more values to the left and tails off to the right,it is skewed negatively.

A researcher asks 20 people to take a sip of two different colas (first Coke and then Pepsi) and rate the flavor of both. In analyzing this data, how should the null hypothesis be stated?

A) H₀: µ_D ≠ 0
B) H₀: µ_D = 20
C) H₀: Coke = Pepsi
D) H₀: µ_D = 0

A researcher hypothesizes that freshmen spend more time studying than sophomores, who spend more time studying than juniors, who spend more time studying than seniors. In conducting a one-way ANOVA with this data, how could the null hypothesis (H₀) be stated?

A) H₀: Freshman > Sophomore > Junior > Senior
B) H₀: μFreshman = μSophomore = μJunior = μSenior
C) H₀: all μs are not equal
D) H₀: μFreshman ≠ μSophomore ≠ μJunior ≠ μSenior

Calculate missing value for the promissory note:

If only MSE is known, you can compute the

A) r-square.
B) coefficient of correlation.
C) standard error.
D) ith residual.

The McQuires pay a monthly mortgage payment of $938.They also pay a semi-annual property tax bill of $3,298 and semi-annual homeowner's insurance of $840.The property tax and insurance are paid monthly into an escrow account to their lender.What is their monthly payment to their lender?

A) $1,283.16
B) $1,518.6
C) $1,627.67
D) $1,672.66

If the current discount rate on 15-year strip bonds is 4.75% compounded semi-annually, how many $1,000 face value strips can be purchased with $10,000?

Which statement(s) verify that $f(x)=\sqrt[7]{x+4}$ and $g(x)=x^2-4$ are inverse?

A) $f(g(x)\; )=\sqrt[7]{x^7-4+4}=x;g(f(x)\; )=(\sqrt[7]{x}{)}^7+4-4=x$
B) $f(x)\cdot g(x)=\sqrt[7]{x+4}\cdot \left(x^7-4\right)=x$
C) $f(g(x)\; )=\sqrt[7]{x^7}-4+4=x;g(f(x)\; )=(\sqrt[7]{x+4}{)}^7-4=x$
D) $f(g(x)\; )=\sqrt[7]{x^7-4+4}=x;g(f(x)\; )=(\sqrt[7]{x+4}{)}^7-4=x$
E) $\frac{f(x)}{g(x)}=\frac{\sqrt[7]{x+4}}{x^7-b}=-1$