(f) Find a 90% confidence interval for each coefficient. (Use 2 decimal places.)   lower limit upper limit β2     β3     (g) Suppose Michael is 68 years old and weighs 192 pounds. Predict his systolic blood pressure, and find a 90% confidence range for your prediction. (Use 1 decimal place.) prediction   lower limit   upper limit

t Test for TWO DEPENDENT (Related) SAMPLES (Show all work) A manufacturer of a gas additive claims that it improves gas mileage. A random sample of 40 drivers tests this claim by determining their gas mileage for a full tank of gas that contains the additive (X1) and for a full tank of gas that does not contain the additive (X2). The sample mean difference D-Bar equals 2.12 miles (in favor of the additive) and the estimated standard error equals 1.50 miles. Test the Null Hypothesis with t, using the .05 Level of significance and construct a 95 percent confidence interval (whether you reject OR retain the Null Hypothesis)

The fitted regression Computer power dissipation=14.82 +0.049 Microprocessor speed, where Computer power dissipation is measured in watts and Microprocessor speed is measured in MHz. (a-1) If Microprocessor speed = 1 MHz, then Computer power dissipation = (a-2) Choose the correct statement. (b) O An increase in the microprocessor speed decreases the computer power dissipation. O An increase in the microprocessor speed increases the computer power dissipation. O A decrease in microprocessor speed increases the computer power dissipation. If Microprocessor speed = 2,900 MHz, then Computer power dissipation = watts. (Round your answer to 3 decimal places.) (c) Choose the right option. watts. (Round your answer to 2 decimal places.) O The Intercept would be meaningful because you would have a computer with zero speed. O The Intercept would not be meaningful because you would not have a computer with zero speed.

Using the data below, calculate the correlation: covariance S(x,y)= 90.2 standard deviation(x) = 42.71 standard deviation(y) = 76.52 (calculate to 2 decimal places) roon= ₁1(x-7)(-) n-1 Σ₁1(x₁-x)² n-1 ₁1-² n-1

4- Hi Bartleby Team, I need help with this exercise since I'mm struggling with this topic in general, please help. Thanks in advance

Z = P=   reject or fail?