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2w^2-11w=-12 a w=3/2 or 4 b w=1 or 12 c w=1 or 7 d w = 2.5 or 6
1 answer:
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Answer:
A
The correct option is B
B
C
D
The correct option is D
Step-by-step explanation:
From the question we are told that
The sample size is
The number that developed nausea is X = 50
The population proportion is p = 0.20
The null hypothesis is
The alternative hypothesis is
Generally the sample proportion is mathematically represented as
Generally the test statistics is mathematically represented as
=>
=>
=>
The p-value obtained from the z-table is
Given that the then we fail to reject the null hypothesis