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Mathematics 11 Online
OpenStudy (anonymous):

The average amount of rainfall during summer months for the northeast part of US is 11.52in. A researchr selects a smple of 10 citues in the northeast and finds that the averge amount of rainfaal for 1995 was 7.42. Standard deviation of sample is 1.3. At alpha=0.05, can it be concluded that for 1995 the mean rainfall was below 11.52?

OpenStudy (anonymous):

Can anyone explain how to answer this?

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