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Fittoniya [83]
3 years ago
7

PLEASE HELP IM GIVING BRAINLIEST one thing that's for sure its not C) 5 2/9

Mathematics
2 answers:
Trava [24]3 years ago
5 0

Answer:

D

Step-by-step explanation:

2\frac{1}{9} + (-\frac{2}{9} )+3\frac{5}{9}\\2\frac{1}{9} +3\frac{3}{9}=5\frac{4}{9}

Tanzania [10]3 years ago
4 0

Answer:

D) 5 4/9

Step-by-step explanation:

\frac{19}{9}+(\frac{-2}{9})+\frac{32}{9}\\\frac{19-2}{9}+\frac{32}{9}\\\frac{17+32}{9}=\frac{49}{9}=5\frac{4}{9}

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kari74 [83]

Answer:

a) Null and alternative hypothesis:

H_0: \pi=0.1\\\\H_a:\pi>0.1

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c) The consequences would be that they would be more optimistic than they should about the result of the investment, expecting a proportion of students that is bigger than the true population proportion.

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Step-by-step explanation:

a) The hypothesis should be carried to test if the proportion of students that would eat there at least once a week is significantly higher than 10%.

Then, the alternative or spectulative hypothesis will state this claim: that the population proportion is significantly bigger than 10%.

On the contrary, the null hypothesis will state that this proportion is not significantly higher than 10%.

This can be written as:

H_0: \pi=0.1\\\\H_a:\pi>0.1

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Step-by-step explanation: Let me know if this helped

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