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dexar [7]
3 years ago
14

Will mark brainliest! No links please. Problem is in pic below. Fill in the blanks.

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
6 0

Answer:

\frac{2}{8} +\frac{2}{3} =\frac{12}{48} +\frac{32}{48} =\frac{44}{48} =\frac{11}{12}

Step-by-step explanation:

To have a common denominator of 48, we need to solve for numerator and denominator!

\frac{2}{8} =\frac{12}{48}        If you multiply the denominator by 6 just to get to 48, you must multiply it to the numerator as well.

\frac{2}{3} =\frac{32}{48}        If you multiply the denominator by 16 just to get to 48, you must multiply it to the numerator as well.

Then we have those results in the line: \frac{12}{48} +\frac{32}{48}

Then we added those fractions to get to 44/48 and simplify it by 4

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malfutka [58]

Answer:

Hello some parts of your question is missing below is the missing part

answer : A) p-value =  0.0019 ,

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B) There is no dependence between the two ratings

Step-by-step explanation:

A) using a 0.05 level of significance and test for independence of the quality of management

Test statistic : X^{2}  ∑ ( Oi - Ei )^2 / Ei

= [(40-35)^2 / 35 ] +  [(25-24.5)^2 / 24.5 ] +  [(5-10.5)^2 / 10.5]  +  [(35-40)^2 / 40]  +  [(35-28)^2 / 28]  +  [(10-12)^2 / 12]  +   [ (25-25)^2 / 25 ]  +  [(10-17.5)^2 / 17.5 ]  + [(15-7.5)^2 / 7.5]  =  17.03  

p-value = 0.0019

Df = 4  ,

The level of significance ( 0.05 ) > p-value ( 0.0019 )

B) There is no dependence between the two ratings

4 0
3 years ago
Can someone check this for me please?
anyanavicka [17]
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5 0
3 years ago
If the project is finished within 26 weeks of its start, the project manager will receive a bonus of $1,000; and if the project
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Step-by-step explanation:

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3 years ago
Question is attached below
Katarina [22]
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