You find an old bathroom scale at a garage sale on your way home from getting a physical exam from your doctor. you step on the scale, and it reads 135 lb. you step off and step back on, and it reads 134 lb. you do this three more times and get readings of 135 lb, 136 lb, and 135 lb. a. what is the precision of this old bathroom scale? would you consider this adequate precision for the type of measurement you are making? b. the much more carefully constructed and better-maintained scale at the doctor's office reads 126 lb. assuming that you are wearing the same clothes that you wore when the doctor weighed you, do you think the accuracy of the old bathroom scale is high or low?

Simplify. 3(4+4x) (type your answer in with no spaces)

What are the greatest common factor of 75 and 30

1. the manager of collins import autos believes the number of cars sold in a day (q) depends on two factors: (1) the number of hours the dealership is open (h) and (2) the number of salespersons working that day (s). after collecting data for two months (53 days), the manager estimates the following log-linear model: q 4 equation 1 a. explain, how to transform the log-linear model into linear form that can be estimated using multiple regression analysis. the computer output for the multiple regression analysis is shown below: q4 table b. how do you interpret coefficients b and c? if the dealership increases the number of salespersons by 20%, what will be the percentage increase in daily sales? c. test the overall model for statistical significance at the 5% significance level. d. what percent of the total variation in daily auto sales is explained by this equation? what could you suggest to increase this percentage? e. test the intercept for statistical significance at the 5% level of significance. if h and s both equal 0, are sales expected to be 0? explain why or why not? f. test the estimated coefficient b for statistical significance. if the dealership decreases its hours of operation by 10%, what is the expected impact on daily sales?