Use the table of systolic blood pressures (in mm Hg) in each arm
to determine a line of regression that predicts the pressure in the
left arm given the pressure in the right arm.
Right Arm 102 101 94 79 79
Left Arm 175 169 162 146 144

Question

01-03-2022
Mathematics

Answered

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Use the table of systolic blood pressures (in mm Hg) in each arm
to determine a line of regression that predicts the pressure in the
left arm given the pressure in the right arm.
Right Arm 102 101 94 79 79
Left Arm 175 169 162 146 144

Sagot :

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zekeinyes zekeinyes · Answer 1 · 2022-03-01T20:41:22-05:00

Answer:

The 90% confidence interval would be given by (63.330;81.070)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Let put some notation

x=left arm , y = right arm

x: 175 169 182 146 144

y: 102 101 94 79 79

Since the Confidence is 0.90 or 90%, the value of a = 0.1 and a/2= 0.05we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,4)".And we see that ta/2= 2.13

Sagot :

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