A process is considered out of control when ________.

A) special causes of variation are present
B) common causes of variation are present
C) process attributes are present
D) process variables are present

Simplify: (1 + i) x (1 + i)ⁿ

The equation: Total SS = SST + SSB + SSE, applies to the completely randomized design (one-way ANOVA model).

A logger knows the average time for his cutting machine to cut 20 trees is 9.8 minutes. A new machine on the market claims to cut the trees in less than 9.8 minutes. A random sample of 25 test runs on the new machine yielded a mean of 8.5 minutes with a standard deviation of 1.5. Does the sample data suggest the new machine cuts faster than the logger's machine? Test at the = 0.05 level. Assume the cutting time is normally distributed and interpret your results.
Test Statistic = ______________
____________________________
The new machine ______________ cut faster than the logger's machine.

In developing an interval estimate for a population mean,the population standard deviation σ was assumed to be 8.The interval estimate was 50.0 ± 2.50.Had σ equaled 16,the interval estimate would be 100 ± 5.0.

Use synthetic division to divide. $\frac{x^4-4x^2+6}{x-4}$

A) $x^3-2x^2+6x-24+\frac{18}{x-4}$
B) $x^3-4x^2+12x-48+\frac{198}{x-4}$
C) $x^3+6x+10+\frac{28}{x-4}$
D) $x^3+x^2+x+1+\frac{48}{x-4}$
E) $x^3+4x^2+12x+48+\frac{198}{x-4}$

$625 is invested each month for 2 years. Compute the future value if interest is 9% compounded monthly. Use Tables 23-1A and 23-1B or a calculator.​