Based on meteorological data for the last decade, a local television weather forecaster estimates that the...
Based on meteorological data for the last decade, a local television weather forecaster estimates that the regions average rainfall is 80cm, with a margin of error of 7cm.
a) the confidence interval will bet between which values
b> how should a vieer watching the forecast interpret the result if 90% confidence interval was used?
Homework Answers
Solution :
Given that,
a) margin of error = 7cm.
Sample mean = 80cm
±
E
80 ± 7
( 73 , 87)
b) We are 90% confident that the true mean of a local television weather forecaster estimates that the regions between 73 and 87.
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Based on meteorological data for the last decade, a local
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