Answer:
h. 36
Step-by-step explanation:
For a 68.26% confidence, z = 1.0.
Standard deviation (s) = 30 minutes
The sample size needed to assure that the sample mean does not differ from the true mean by more than 5 minutes is given by:
The sample size needed is 36.
So firstly, multiply both sides by t: 
Next, add both sides by v0, and your answer will be: 
Well, we know that 25% is also 1/4 and if we multiply $80.00 by 1/4 you get $20 so the answer is $20.
Answer:
$8.90
Step-by-step explanation:
((2)(2.90))+(3.10)= $8.90
Answer:
12
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