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 [tex]H_o : p = 0.28[/tex] vs [tex]H a : p < 0.28[/tex]when the sample has n 900 , and [tex]\^ p = 0.216[/tex] with [tex]SE= 0.01[/tex] . Find the value of the standardized z -test statistic. Round your answer to two decimal places.
Answer:
The value is [tex]z = -6.40[/tex]
Step-by-step explanation:
Generally the standardized test statistics is mathematically represented as
[tex]z = \frac{\^ p - p }{ SE }[/tex]
=> [tex]z = \frac{0.216 - 0.28 }{ 0.01 }[/tex]
=> [tex]z = \frac{0.216 - 0.28 }{ 0.01 }[/tex]
=> [tex]z = -6.40[/tex]
