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1. ### Statistics question? z-tests?

? Whenever they give you a "sample size" [100 in this example], always use (xbar-u)/(std dev/sqrt(n)) ...

2 Answers · Education & Reference · 13/07/2013

2. ### help with precalc please?

Olivia 1.) a small corporation borrowed 1,500,000 to expand...and some at 8%, and some at 10%. use a system of equations to determine.... Let x, y and z be the amounts invested...

1 Answers · Education & Reference · 02/04/2013

3. ### Statistics homework help please???

The general z-score formula is: z = (x̄ - μ) / σ a) z = (1000 - 951) / 96 = 0.5104 P(z ≥ 0.5104) ≈ 0.3049 b) z = (900 - 951) / 96 = -0.5313; z = (1100 - 951) / 96 = 1.5520 P(-0.5313 ≤ z ≤ 1.5520) ≈ 0.6421

1 Answers · Education & Reference · 22/02/2015

4. ### Can I please get some accounting help?

...also giving you the logic behind my answer. 4. correct option is A. All the accounting policies adopted should be properly...

5 Answers · Education & Reference · 13/05/2011

5. ### I dying need of accounting help 2?

What

2 Answers · Education & Reference · 16/03/2014

6. ### Statistics Hypotheses help?

... less that 2.33 we do not reject the null hyp We change 88.5 to a z (it's called a test statistic) and if test stat=z=(xbar-mu)/(sigma/sqrt(sample...

1 Answers · Education & Reference · 29/11/2009

7. ### Solve this math problem plz....i am confused?

... owns .5 or 50% of the shares) So, X and Z own a total of 90% of the shares (40% + 50%) That means Y...

4 Answers · Education & Reference · 16/07/2011

8. ### help correct the errors of the following sentences?

...quot; I was" or "XY Z Corporation is" or "Dr. Jane.... 3. This starts out with a sentence fragment. Again, you need a subject...

3 Answers · Education & Reference · 02/09/2007

9. ### Question about world war 2?

...) came together to discuss post-war Europe Z = Zumbach, Jan Zumbach lead the ... from 1942 to 1943 and prior to that was a a founding member of the squadron and took par

1 Answers · Education & Reference · 26/01/2011

10. ### Does anyone know any background history regarding this equation: w^4 = x^4 + y^4 + z^4 ?

...187,960; 20,615,673. Roger Frye of Thinking Machines Corporation did a computer search to find the smallest example: 95,800, 217,519, 414,560; 422,481...

1 Answers · Education & Reference · 28/12/2010