DP 26, please use minitab to solve it

26. Thinning of Ozone Layer. Thinning of the protective layer of ozone surrounding the eart may have catastrophic consequences. A team of University of California scientists estimated thi increased solar radiation through the hole in the ozone layer over Antarctica altered processes t such an extent that primary production of phytoplankton was reduced 6 to 12%. Depletion of the ozone layer allows the most damaging ultraviolet radiation-UVB (280- 320 nm)to reach the earth's surface. An important consequence is the degree to which oceani: phytoplankton production is inhibited by exposure to UVB, both near the ocean surface (where the effect should be slight) and below the surface (where the effect could be considerable) To measure this relationship, the researchers sampled from the ocean column at various depths at 17 locations around Antarctica during the austral spring of 1990. To account for shifting of the ozone hole's positioning, they constructed a measure of UVB exposure integrated over exposure time. The exposure measurements and the percentages of inhibition of normal phytoplankton production were extracted from their graph to produce Display 10.22. (Data from R. C. Smith et al., "Ozone Deple tion: Ultraviolet Radiation and Phytoplankton Biology in Antarctic Waters," Science 255 (1992) 952-57.) Does the effect of UVB exposure on the distribution of percentage inhibition differ at the surface and in the deep? How much difference is there? Analyze the data, and write a summary df statistical findings and a section of details documenting those findings. (Suggestion: Fit the mod with different intercepts and different slopes, even if some terms are not significantly different fromt zero.)