Rita and Keith want to find the mean number of movies students in their class saw last year. So they each randomly select students in their class and ask for the numbers. The results are shown below. Use the data to answer the questions. Rita's sample: 12, 17, 6, 10, 13, 16, 18, 9 Keith's sample: 7, 11, 6, 8, 10 (a) What is the sample size for Rita's sample? (b) What is the sample size for Keith'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 Rita's sample O Keith'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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 13PPS
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Rita and Keith want to find the mean number of movies students in their class saw last year. So they each randomly select students in their class and ask for the
numbers.
The results are shown below. Use the data to answer the questions.
Rita's sample:
12, 17, 6, 10, 13, 16, 18, 9
Keith's sample:
7, 11, 6, 8, 10
(a) What is the sample size for Rita's sample?
(b) What is the sample size for Keith'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 Rita's sample
O Keith'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.
Transcribed Image Text:Rita and Keith want to find the mean number of movies students in their class saw last year. So they each randomly select students in their class and ask for the numbers. The results are shown below. Use the data to answer the questions. Rita's sample: 12, 17, 6, 10, 13, 16, 18, 9 Keith's sample: 7, 11, 6, 8, 10 (a) What is the sample size for Rita's sample? (b) What is the sample size for Keith'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 Rita's sample O Keith'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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