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Question6: A sample of 10 networking sites for a specific month has a mean of 26.1 and a standard deviation of 4.2. Find the 99%

Question6:

A sample of 10 networking sites for a specific month has a mean of 26.1 and a standard deviation of 4.2. Find the 99% confidence interval of the true mean.

[05 Marks]

Question7:

A recent survey of 8 social networking sites has a mean of 13.1 million visitors for a specific month. The standard deviation was 4.1 million. Find the 95% confidence interval of the true mean.

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