Mathematics, 05.05.2020 17:39, taynalizcaamanoxewm0

In a test for acid rain, an SRS of 49 water samples showed a mean pH level of 4.4 with a standard deviation Of 0.35. Find the
margin of error and write an expression for the 90% confidence interval estimate for the mean pH level.

Answers: 1

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In a test for acid rain, an SRS of 49 water samples showed a mean pH level of 4.4 with a standard de...

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In a test for acid rain, an SRS of 49 water samples showed a mean pH level of 4.4 with a standard deviation Of 0.35. Find the margin of error and write an expression for the 90% confidence interval estimate for the mean pH level.

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In a test for acid rain, an SRS of 49 water samples showed a mean pH level of 4.4 with a standard deviation Of 0.35. Find the
margin of error and write an expression for the 90% confidence interval estimate for the mean pH level.