According to published reports, practice under fatigued conditions distorts mechanisms that govern performance. An experiment was conducted sing 15 college males, who were trained to make a continuous horizontal right-to-left arm movement from a microswitch to a barrier, knocking over the barrier coincident with the arrival of a clock sweephand to the 6 o'clock position. The absolute value of the difference the time that it took to knock over the barrier and the time for the sweephand to reach the 6 o'clock position was recorded.

Please construct the dataset with R. (e.g. prefatigue = c(158, 92, ...., 85) )

Draw a boxplot for prefatigue and postfatigue performances using the command boxplot(). Do you see any difference between two groups?

Test the claim that practice under fatigued conditions distorts mechanisms that govern performance. Show your programming code to calculate statistic and p-value. Make an excel file and use the data which is shown below picture.

AutoSave O Off) Ex 1043txt - Excel Search prince patel PP X File Home Insert Draw Page Layout Formulas Data Review View Help Share Comments X Calibri v 11 AA E ab Wrap Text General Ex AY O Paste BIU ~ CEE Merge & Center ~ $ ~ % " Conditional Format as Cell Insert Delete Format Sort & Find & Ideas Formatting Table Styles ~ v Filter * Select Clipboard Font Alignment Number Styles Cells Editing Ideas i POSSIBLE DATA LOSS Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it in an Excel file format. Don't show again Save As... X A1 X V fx Prefatigue Postfatigue A B C D E F G H J K L M N O P Q R S T U - PrefatiguePostfatigue W N 158 91 92 59 65 215 98 226 4 00 33 223 89 91 148 92 58 177 10 142 134 11 117 116 12 74 153 13 66 219 14 109 143 15 57 164 16 85 100 17 18 19 Ex1043txt (+ Ready + 100% Type here to search O $ 96 X A O ENG 2:01 PM US 2/5/2020