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ikadub [295]
3 years ago
13

Approximately 38 percent of people living in Region W have the blood type O positive. A random sample of 100 people from Region

X revealed that 35 people in the sample had the blood type O positive. Consider a hypothesis test to investigate whether the percent of people in Region X with O positive blood is different from that of in Region W. Which of the following is the appropriate null hypothesis for the investigation?
Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

Step-by-step explanation:

p = .38

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Dmitriy789 [7]

Answer:

Step-by-step explanation:

Xét tam giác DAB có: P là trung điểm AD, M là trung điểm AB

=> MP là đường trung bình của tam giác DAB => MP//BD và MP=\frac{1}{2}BD  (1)

Xét tam giác DBC có: N là trung điểm DC, Q là trung điểm BC

=> QN là đường trung bình của tam giác DBC => QN//BD và QN=\frac{1}{2}BD  (2)

Từ (1) và (2) => vecto MP song song cùng chiều với vecto QN

và độ dài MP = độ dài QN = \frac{1}{2}BD

=> vecto MP = vecto QN

Tương tự xét các tam giác DAC và tam giác ABC => vecto MQ = vecto PN

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2 years ago
This is for extra credit​
ivolga24 [154]

Answer:

\

Step-by-step explanation:

its to blurry what does it say so i can help

5 0
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Write an equation that reflects this relationship using x to represent the amount of fish in grams and y to represent the number
NeTakaya

Answer:

send the graph and ill solve it

Step-by-step explanation:

7 0
2 years ago
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