<h3>Answer: B) 31.348</h3>
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Work Shown:
We will never use the alpha = 0.05 value when computing the test statistic. So we can ignore alpha for this particular problem.
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n = 40 is the sample size.
s = 2.6 is the sample standard deviation
= sigma = 2.9 is the population standard deviation (ie the claimed standard deviation for all the pay phones)
Test Statistic for chi-square

I think the answer is A , if y’all don’t get it right I’m sorry
Answer:
t = 137-w
Step-by-step explanation:
Answer:
The second one is correct.
Answer:
I think it's the top right
Step-by-step explanation:
Just take it trust me