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# Confidence Interval

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1.Compute a 95% confidence interval for the mean saline of the tears. You select a random sample of 100 tear drops. The sample has an average salt concentration of 0.1 with a standard deviation of 0.01.

2. In class a poll was conducted that I will get 60% of my work correct.
To be 95% confident that I am within 2% of the vote I will actually receive, how many voters should have been

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Solution-1:
The confidence interval for the mean is ...

#### Solution Summary

The expert examines confidence interval conducted for mean tears.

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