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Question: Consider the weight and blood pressure data in Problem. Fit a no-intercept model to the data and compare it to the model obtained in Problem. Which model would you conclude is superior?

Problem: The weight and systolic blood pressure of 26 randomly selected males in the age group 25-30 are shown below. Assume that weight and blood pressure (BP) are jointly normally distributed.

a. Find a regression line relating systolic blood pressure to weight.

b. Estimate the correlatiou coefficient.

c. Test the hypothesis that ρ = 0.

d. Test the hypothesis that ρ = 0.6.

e. Find a 95% CI for ρ.

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Engineering Mathematics, Engineering

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