A long-distance telephone company claims that the mean duration of long-distance telephone calls originating in one town was gre
1 answer:
Answer:
(D) Conclusion: Do not support the claim that the mean is greater than 9.4 minutes
Step-by-step explanation:
Let X be the mean duration of long distance telephone class originating in one town.
(one tailed test)
The conclusion of the hypothesis test assuming that the results of the sampling don’t lead to rejection of the null hypothesis.
This means that there is no statistical evidence to support the alternate claim.
Hence option D is right.
(D) Conclusion: Do not support the claim that the mean is greater than 9.4 minutes
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Answer: E(ax+b) = aE(x) + b
Step-by-step explanation: see attachment below
Answer:
0.578 hours
Step-by-step explanation:
If boxes of books arrive at a rate of 1 per 8 minutes, the number of boxes per hour is:
If the service rate is 1 box per 6.5 minutes, the number of boxes per hour is:
The average time from when a box of novels arrives until shredding is complete is:
The average time in the system is 0.578 hours.