3/4 + 2 1/2 + 4 1/4 porfavor ayudaaa
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Answer:
Final answer is approx 6.644 years.
Step-by-step explanation:
The standard error (SE) of the sampling distribution difference between two proportions is given by:
<span> is the size of sample 1, and 
<span> is the size of sample 2.
</span>
<span>
Given that a</span><span>t one vehicle inspection station, 13 of 52 trucks and 11 of 88 cars failed the emissions test.
</span>
<span>
</span>
<span>
</span> </span>
</span>
<span>
Given that a</span><span>t one vehicle inspection station, 13 of 52 trucks and 11 of 88 cars failed the emissions test.
</span>
<span>
</span>
</span> </span>