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The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...

The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of a person is measured 18 times over several days and the standard deviation of these measurements for the person is known to be σ=8.3 σ = 8.3 mmHg. Let μ μ be the true average blood pressure for that person and let x¯=104 x ¯ = 104 be the average of the 18 measurements.

(a) Find a two-sided 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is between Answer and Answer .

(b) Find a lower-bound 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is at least Answer .

(c) Find an upper-bound 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is at most Answer .

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