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Lerok [7]
3 years ago
8

400 is decreased 60 amount of change

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0
400-60

this is simple subtraction

your answer would be 340
alukav5142 [94]3 years ago
3 0
400 to 400-60 which is 340

Does this helps you?
I hope it does but tell me if it doesn't.

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According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 20
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Answer:

Random variable: for this case represent the number of complaints in 2007

Population parameter: represent the real proportion of complaints in 2007 p

Hypothesis to verify

We want to check if the true proportion of complaints in 2007 is equal to 0.23, the system of hypothesis are.:  

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Alternative hypothesis:p \neq 0.23  

Step-by-step explanation:

Information provided

n=1432 represent the random sample taken

X=321 represent the number of complaints

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p_o=0.23 is the value to verify

z would represent the statistic

Random variable: for this case represent the number of complaints in 2007

Population parameter: represent the real proportion of complaints in 2007 p

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We want to check if the true proportion of complaints in 2007 is equal to 0.23, the system of hypothesis are.:  

Null hypothesis:p=0.23  

Alternative hypothesis:p \neq 0.23  

3 0
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alina1380 [7]

Answer:

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Step-by-step explanation:

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