Part 5: Assessing the Relationship Between the Variables Use the reference summary and graphs for the least-squares regression model for temperature. 28. What is the t* critical value for a 95% confidence interval of the true slope of the linear model for temperature using this sample size? How many degrees of freedom here? 29. Estimate the true slope of the linear model for temperature using a 95% confidence level. Make sure to interpret your estimate as a slope.

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)