Scott and Shen want to find the mean time students in their class spent watching TV last week. So they each randomly select students in their class and ask for the times. The results are shown below (in hours). Use the data to answer the questions. Scott's sample: 11, 8, 12, 5, 17, 14 Shen's sample: 14, 9, 15, 20, 17, 5, 19, 7 (a) What is the sample size for Scott's sample? (b) What is the sample size for Shen's sample? (c) Suppose you had to choose one sample to estimate the mean. Which sample is more likely to give a good estimate of the mean? O Scott's sample O Shen's sample Why? O It has the smaller sample size. O It has the larger sample size. O It has the smaller mean.
Scott and Shen want to find the mean time students in their class spent watching TV last week. So they each randomly select students in their class and ask for the times. The results are shown below (in hours). Use the data to answer the questions. Scott's sample: 11, 8, 12, 5, 17, 14 Shen's sample: 14, 9, 15, 20, 17, 5, 19, 7 (a) What is the sample size for Scott's sample? (b) What is the sample size for Shen's sample? (c) Suppose you had to choose one sample to estimate the mean. Which sample is more likely to give a good estimate of the mean? O Scott's sample O Shen's sample Why? O It has the smaller sample size. O It has the larger sample size. O It has the smaller mean.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Scott and Shen want to find the mean time students in their class spent watching TV last week. So they each randomly select students in their class and ask for
the times.
The results are shown below (in hours). Use the data to answer the questions.
Scott's sample:
11, 8, 12, 5, 17, 14
Shen's sample:
14, 9, 15, 20, 17, 5, 19, 7
(a) What is the sample size for Scott's sample?
(b) What is the sample size for Shen's sample?
(c) Suppose you had to choose one sample to estimate the mean.
Which sample is more likely to give a good estimate of the mean?
O Scott's sample
O Shen's sample
Why?
O It has the smaller sample size.
O It has the larger sample size.
O It has the smaller mean.
O It has the larger mean.
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