Suppose you are trying to explain variations in salaries for technicians in a particular field of work. The file P11_71.xlsx contains annual salaries for 200 technicians. It also shows how many years of experience each technician has, as well as his or her education level. There are four education levels, as explained in the comment in cell D1. Three suggestions are put forth for the relationship between Salary and these two explanatory variables:
You should regress Salary linearly versus the two given variables, YrsExper and EducLev.
All that really matters in terms of education is whether the person got a college degree or not. Therefore, you should regress Salary linearly versus YrsExper and a dummy variable indicating whether he or she got a college degree.
Each level of education might result in different jumps in salary. Therefore, you should regress Salary linearly versus YrsExper and dummy variables for the different education levels.
a. Run the indicated regressions for each of these three suggestions. Then (1) explain what each equation is saying and how the three are different (focus here on the coefficients), (2) which you prefer, and (3) whether (or how) the regression results in your preferred equation contradict the average salary results shown in the Pivot Table sheet of the file.
b. Consider the four workers shown on the Prediction sheet of the file. (These are four new workers, not among the original 200.) Using your preferred equation, calculate a predicted salary and a 95% prediction interval for each of these four workers.
c. It turns out (you don’t have to check this) that the interaction between years of experience and education level is not significant for this data set. In general, however, argue why you might expect an interaction between them for salary data of technical workers. What form of interaction would you suspect? (There is not necessarily one right answer, but argue convincingly one way or the other for a positive or a negative interaction.)

It is vital to research each of the services you plan to disable before implementing any change, especially on critical machines such as the: a. servers in the test environment. b. domain controller and other infrastructure servers. c. desktops that have previously been attacked. d. desktops used by upper-level management.

Program using c++ only on visual studio pig is a simple two player dice game, played with one die. the first player to reach or surpass 50 is the winner. each player takes a turn rolling the dice. they add to the pot with each roll, having to decide to roll again and increase the pot, or cash out. the risk being they could lose the amount they’ve accumulated into the pot. the rules for each player’s die roll. 1. roll the dice. a. if user rolled a 1, i. the pot gets set to zero ii. the other player goes to step 1. b. a roll of 2-6 is added to the pot. 2. user can choose to hold or roll again. a. choice roll. return to step 1. b. choice hold. i. increment player score by the pot amount. ii. pot gets set to 0. iii. second player gets to roll and goes to step 1. program requirements: ● before each opponent begins ○ output the score for the person and the computer. ○ output the opponents whose turn is beginning and ask the user to hit enter to continue. ● with each dice roll. ○ output the die value, and amount of the round pot. ○ if it’s the users roll ask if they want to roll again ( r ) or hold ( h ). your program should allow r, r, h or h as valid input. if input is anything else, ask the user again until valid input is obtained. ○ the ai will continue playing until the round pot is 20 or more. ● once a player’s score is greater or equal to 50 then they have won, it will no longer ask if they want to keep rolling the die or not. ● once there is a winner ○ score totals are output along with who the winner was. user or computer ○ player is asked if they want to play again y or n. valid input should be y, y, or n, n. ● when a new game starts the starting roll goes to the player that did not roll last. if the user rolled last in the previous game, then the computer rolls first and vice versa. when the program first begins, the player will make the first roll of the first game. development notes : ● you will need a way to roll dice in your program. the rand() function works well, but returns an integer. if we want numbers 0 – 9 we can get the value modulus 10. ● call srand() with a value to seed it. it’s common to seed it with the current computer clock, include ctime, and then call srand(time(

The more powerful, 60 volt cables and the main power shut-off on an hev are both colored orange.