Answer:
12
Step-by-step explanation:
Answer:
z=-1.591
Step-by-step explanation:
Null Hypotheses,

So we use z-test for one population proportion (right-tailed test)
According to this informaton, we defined that

(critical value)
So our Rejection region is 

Not rejection.
<span>I got 0.10,Hopefully that helps!</span>
<em>The answer would be 1 1/5
</em>
<em>
</em>
<em>48/40 = 1 8/40
</em>
<em>
</em>
<em>1 8/40 Simplify to 1 1/5
</em>
<em>
</em>
<em>Hope this helps! </em>
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