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Author Question: Solve the problem. Round your answer to one decimal place unless otherwise indicated.A long-distance ... (Read 60 times)

leilurhhh

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Question 1

Solve the problem. Round your answer to one decimal place unless otherwise indicated.

Ten apples of a particular variety are selected at random and weighed.  The weights (in ounces) are as follows:
8.5,  7.8, 8.1, 6.9, 7.4, 6.1, 7, 8.6, 8.3, 7.9  
Estimate the  mean weight of  all apples of this variety.
◦ It is not possible to estimate the population mean from this sample data
◦ 7.8  ounces
◦ 7.7  ounces
◦ 8.0  ounces

Question 2

Solve the problem. Round your answer to one decimal place unless otherwise indicated.

A long-distance phone company wishes to estimate the mean duration of long-distance calls originating in California. A random sample of 15 long-distance calls originating in California yields the following call durations, in minutes.


Use the data to obtain an estimate of the mean call duration for all long-distance calls originating in California.
◦ 14.9 minutes
◦ 14.6 minutes
◦ 14.4 minutes
◦ 15.2 minutes


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Marked as best answer by leilurhhh on Jan 18, 2020

jxjsniuniu

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leilurhhh

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Reply 2 on: Jan 18, 2020
Great answer, keep it coming :)


chereeb

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Reply 3 on: Yesterday
Gracias!

 

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