A random sample of n = 31 American households is asked how many TV sets there are
Question:
A random sample of n = 31 American households is asked how many TV sets there are in the household. The responses are as follows:
1 0 2 3 2 3 4 2 1 1 2
4 3 2 3 3 0 1 0 1 3 2
4 3 2 1 4 0 1 2 3
a. What is the mean number of TVs for the sample?
b. What is the standard deviation for the sample?
c. What is the best estimate for the mean number of TVs for the population of all American households?
d. What is the 95% confidence interval for the estimate in part (c)?
e. Comment on the reliability of the estimate.
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a Mean of sample is 36666 b Standard deviation of sample sqrt31 ...View the full answer
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Related Book For 
Statistical Reasoning For Everyday Life
ISBN: 978-0134494043
5th Edition
Authors: Jeff Bennett, William Briggs, Mario Triola
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