Mathematics, 11.03.2020 18:30 sanic123
The box plots show the target heart rates of men 20β40 years old and men 50β70 years old. Which statement is best supported by the information in the box plots? A) The range of the data for men 20β40 years old is less than the range of the data for men 50β70 years old. B) The median of the data for men 20β40 years old is less than the median of the data for men 50β70 years old. C) The minimum target heart rate for men 20β40 years old is less than the minimum target heart rate for men 50β70 years old. D) The interquartile range of the data for men 20β40 years old is greater than the interquartile range of the data for men 50β70 years old.
Answers: 2
Mathematics, 21.06.2019 20:00
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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?
Answers: 2
Mathematics, 22.06.2019 02:30
Which of the following exponentially equations is equivalent to the logarithmic equation below?
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Mathematics, 22.06.2019 03:00
Select quivalent or not equivalent to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column.
Answers: 3
The box plots show the target heart rates of men 20β40 years old and men 50β70 years old. Which stat...
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