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maw [93]
3 years ago
8

I need help please!!

Mathematics
2 answers:
geniusboy [140]3 years ago
7 0

the first answer is correct

Umnica [9.8K]3 years ago
6 0

x + y = 3
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skad [1K]

Answer:

a

  The null hypothesis is  H_o  :  p =  0.67

   The alternative hypothesis is  H_a : p \ne 0.67

b

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Step-by-step explanation:

From the question we are told that

     The sample size is  n =  546  

      The number of people that use a laptop overnight is  k = 355

    The population proportion is  p =  \frac{2}{3}  =  0.67

   Generally

  The null hypothesis is  H_o  :  p =  0.67

   The alternative hypothesis is  H_a : p \ne 0.67

Gnerally the sample proportion is mathematically represented as

        \^ p  =  \frac{ k}{n}

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=>     \^ p  =  0.65

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3 years ago
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