People hired from outside atomic number 18 on mediocre paid more than people promoted from indoors, but for the same level of fee people promoted from within tend to perform better. in that respect are also two distinct groups which have been promoted from within -- a low group, and a high group (in term of performance).
Chapter 5 Exercise 11
A reasonable approach would be to compute the correlations and find the ones which are closest to either + 1 or 1. Using Correlation in analysis ToolPak, we sustain the following correlations (minor formatting has been applied):
gender (1=F, 0=M) gender (1=F, 0=M) age yrs exp yrs at firm yrs ed annual remuneration 1 -0.139 0.073 -0.249 -0.152 -0.177 1 0.774 0.871 0.490 0.909 1 0.443 0.362 0.669 1 0.308 0.818 1 0.650 1 age yrs exp yrs at firm yrs ed annual salary
grow has the highest correlation with annual salary (0.909), followed by years at firm (0.818), years exp (0.669), and years of education (0.650). Annual salary is not exceedingly correlated with gender (-0.177).
Also brand that age and years at firm are highly correlated, as we would expect (this is an example of multicol groovearity, which we will discuss when we show multiple regression)
Chapter 5 Exercise 14 It does not implicate immigrants tend to earn more than other people. It does not inevitably mean immigrants improve a states economy. The precedent could run in the other direction: it could be that immigrants are drawn to states where the economy is already good. Chapter 10 Exercise 6
The scatterplot of woo against Order size is shown below (obtained using Excels Chart menu). Clearly, Cost tends to increase with run size in a linear pattern. Fitting a regression line to this and plugging in 500 units for X would give us a better estimate.
The regression line can be pitch either by using the Slope and Intercept functions in Excel, or by using Regression in Analysis ToolPak. Cost = 18762 + 30.44×Order...If you want to get a full essay, order it on our website: Orderessay
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