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ivann1987 [24]
3 years ago
14

A report states that the mean yearly salary offer for students graduating with accounting degrees in 2012 was $49,007. Suppose t

hat a random sample of 60 accounting graduates at a large university who received job offers
resulted in a mean offer of $49,800 and a standard deviation of $3,100. What is the observed significance level?


The correct answer is 0.261, but I'm not sure how to get there.
Mathematics
1 answer:
son4ous [18]3 years ago
4 0

Answer:

The significance level of difference in fhe two means is indeed 0.26.

Step-by-step explanation:

To obtain the significance level, just standardize the mean in 2012 with the new mean and standard deviation.

The standardized score (z) is the value (x) minus the mean (xbar) then divided by the standard deviation (σ)

z = (x - xbar)/σ = (49007 - 49800)/3100 = - 0.26

Therefore, the significance level of difference is indeed 0.26.

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Tickets to the college basketball game are $2.50 for students and $3 for general admission. If 54 people attended the last game
Yuki888 [10]

Answer:

  • 28 general admission
  • 26 student

Step-by-step explanation:

Let g represent the number of general admission tickets sold. Then the revenue is ...

  3g +2.50(54-g) = 149

  .50g = 14 . . . . . . . . . . . subtract 135

  g = 14/.5 = 28 . . general admission tickets sold

  54-g = 26 . . . . . student tickets sold

8 0
3 years ago
A triangle has an angle that measures 10°. The other two angles are in a ratio of 7:10. What are the measures of those two angle
Sliva [168]

Answer:

100 degrees and 70 degrees

Step-by-step explanation:

180 - 10 = 170

with a ratio of 7:10

7x + 10x = 170

17x = 170

x = 170/17    

x = 10

one angle in 100 degrees and the other is 70 degrees

4 0
2 years ago
Please need help thank
storchak [24]

Answer:

35 balloons

Step-by-step explanation:

If wrong srry...hope this helps

4 0
3 years ago
Read 2 more answers
2. Suppose (220)_b and (251)_b are the squares of consecutive integers. Determine b.
Andrei [34K]

Let x and x+1 be these consecutive integers. For some base b, we can write

(x_{10})^2=220_b=2b^2+2b

((x+1)_{10})^2=251_b=2b^2+5b+1

If

x^2=2b^2+2b

then

x^2+1=2b^2+2b+1

Now,

x^2+2x+1=2b^2+5b+1

2x+2b^2+2b+1=2b^2+5b+1

\implies2x=3b

Squaring both sides gives

4x^2=9b^2

and so

4(2b^2+2b)=9b^2

\implies8b^2+8b=9b^2

\implies b^2-8b=0\implies\boxed{b=8}

(because the base has to be non-zero)

3 0
3 years ago
The measure of an exterior angle at n measures 99�. m�l � __1 3 x� and m�m � __2 3 x�. find m�l, m�m, and m�lnm.
kirill [66]
You should ask your parent/guardian
 or teacher if needed! Merry Christmas!
8 0
3 years ago
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