A keyboard manufacturer is assessing the durability of keyboard designs for it's new line of gaming keyboards,
Question:
A keyboard manufacturer is assessing the durability of keyboard designs for it's new line of gaming keyboards, the RGB ProKing Deluxe (Over 16 trillion colors and 32 different lighting effects!). They are testing out 4 different keyswitch options, rubber dome (RD), electro-capacitive (EC), foam and foil (FAF) and linear mechanical red switches (LMS) along with 4 different backplate options, no backplate (NBP), plastic backplate (PBP), aluminum backplate (ABP) and steel backplate (SBP). Three prototype keyboards of each pair of options were built and tested using typing robots which pressed the keys until failure. The number of keys pressed until failure on each unit were recorded (in millions) and are given below in the following csv file. The company is assuming there is no interaction between backplate and keyswitch type. If you can't use the csv download button for whatever reason, the data is given at the bottom of this page. Use R to anwser the following questions and fill in the two way ANOVA table.
Switch | Backplate | Keyboard | KeysPressed |
RD | NBP | 1 | 27.69 |
EC | NBP | 1 | 25.87 |
FAF | NBP | 1 | 32.4 |
LMS | NBP | 1 | 34.71 |
RD | PBP | 1 | 30.99 |
EC | PBP | 1 | 31.41 |
FAF | PBP | 1 | 36.97 |
LMS | PBP | 1 | 39.58 |
RD | ABP | 1 | 28.05 |
EC | ABP | 1 | 29.99 |
FAF | ABP | 1 | 32.05 |
LMS | ABP | 1 | 35.9 |
RD | SBP | 1 | 26.53 |
EC | SBP | 1 | 27.8 |
FAF | SBP | 1 | 33.17 |
LMS | SBP | 1 | 36.81 |
RD | NBP | 2 | 28.57 |
EC | NBP | 2 | 28.45 |
FAF | NBP | 2 | 32.71 |
LMS | NBP | 2 | 37.37 |
RD | PBP | 2 | 28.31 |
EC | PBP | 2 | 30.38 |
FAF | PBP | 2 | 36.71 |
LMS | PBP | 2 | 38.88 |
RD | ABP | 2 | 28.61 |
EC | ABP | 2 | 26.64 |
FAF | ABP | 2 | 32.34 |
LMS | ABP | 2 | 37.3 |
RD | SBP | 2 | 26.82 |
EC | SBP | 2 | 27.05 |
FAF | SBP | 2 | 32.54 |
LMS | SBP | 2 | 36.19 |
RD | NBP | 3 | 26.24 |
EC | NBP | 3 | 27.52 |
FAF | NBP | 3 | 31.84 |
LMS | NBP | 3 | 36.43 |
RD | PBP | 3 | 30.67 |
EC | PBP | 3 | 29.87 |
FAF | PBP | 3 | 34.66 |
LMS | PBP | 3 | 39.33 |
RD | ABP | 3 | 27.53 |
EC | ABP | 3 | 26.3 |
FAF | ABP | 3 | 30.41 |
LMS | ABP | 3 | 37.05 |
RD | SBP | 3 | 27.22 |
EC | SBP | 3 | 25.86 |
FAF | SBP | 3 | 33.39 |
LMS | SBP | 3 | 35.84 |
CALCULATE MSE?