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uranmaximum [27]
2 years ago
9

The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distr

ibution. Test vs when the sample has , , and with . Find the value of the standardized z-test statistic. Round your answer to two decimal places.
Mathematics
1 answer:
Tanya [424]2 years ago
4 0

Complete Question

The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. Test H_o : p =  0.28 vs H a : p <  0.28when the sample has n 900 , and \^ p = 0.216 with SE=  0.01 . Find the value of the standardized z -test statistic. Round your answer to two decimal places.

Answer:

The value is  z =  -6.40

Step-by-step explanation:

Generally the standardized test statistics is mathematically represented as

     z =  \frac{\^ p  -  p }{ SE }

=>  z =  \frac{0.216  -  0.28 }{ 0.01  }

=>  z =  \frac{0.216  -  0.28 }{ 0.01  }

=>  z =  -6.40

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