A horticulturist is studying the relationship between tomato plant height and fertilizer amount. Thirty tomato plants grown in similar conditions were subjected to various amounts of fertilizer (in ounces) over a four-month period, and then their heights (in inches) were measured. Height Fertilizer 20.4 1.9 49.2 5.0 ⋮ ⋮ 46.4 3.1 Click here for the Excel Data File a. Estimate the model: Height = β0 + β1Fertilizer + ε. (Round your answers to 2 decimal places.) Heightˆ = + Fertilizer b-1. Interpret the coefficient of Fertilizer. (Round your answer to 2 decimal places.) b-2. Does the y-intercept make practical sense? multiple choice Yes, since the y-intercept is positive. No, since the y-intercept is positive. Yes, since some farmers may not use any fertilizer. No, since some farmers may not use any fertilizer. c. Use the estimated model to predict, after four months, the height of a tomato plant which received 3.0 ounces of fertilizer. (Round coefficient estimates to at least 4 decimal places and final answer to 2 decimal places.)

Design an er diagram for keeping track of information about votes taken in the u.s. house of representatives during the current two-year congressional session. the database needs to keep track of each u.s. state's name (e.g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i.e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information: