# A recent experiment conducted at University.r of Utah used a sample of college studenm to investigate whether cell phone use impairs drivers’…

Research question: Is there a difference in the mean reaction times of students who underwent the two conditions, one using the cellphone and the other not using the cellphone?

Hint: You will need to use input the data into Excel to obtain the pertinent statistics. You can either use Method 1 or Method 2 introduced in Lecture 8. Perform the hypothesis testing and write up the results. Then, paste the Excel output (do NOT attach the excel file).

A recent experiment conducted at University.r of Utah used a sample of college studenm toinvestigate whether cell phone use impairs drivers’ reaction times. On a machine that simulated driving situations, at irregular periods a target ﬂashed red or green. Participants were instructedto press a brake button as soon as possible when they detected a red light. Under the cell phone condition, the student carried out a conversation about a political issue on the cell phone withsomeone in a separate room. In the control conditionI theyr listened to a radio broadcast or tohooks—on—tape while performing the simulated driving. For each student, for a particularcondition the outcome recorded in the table on slide 17 is their mean response time (inmilliseconds] over several trials. Research question: Is there a difference in the mean reaction times of students who underwentthe two conditions, one using the cellphone and the other not using the cellphone? Hint: You will need to use input the data into Excel to obtain the pertinent statistics. You caneither use Method 1 or Method 2 introduced in Lecture 3. Perform the hypothesis testing and write up the results. Then, paste the Excel output {do NOT attach the excel file). Eell Phone? Eell Phone?student No Yes Difference student No Yes Difference1 694 636 32 1? 525 626 1912 556 623 6? 13 598 591 J3 549 615 25 19 529 524 454 522 612 159 29 429 468 -25 459 691 142 21 512 528 666 544 699 56 22 48? 569 7’31’ 513 542 29 23 515 525 193 429 554 B4 24 499 64?:|r 1489 556 543 -13 25 448 456 819 531 529 -11 26 558 688 13911 599 699 19 2? 589 629 9912 53?:|r 559 22 23 314 969 14613 619 595 -24 29 519 558 3914 536 565 29 39 462 482 2915 554 513 19 31 521 52?:|r 616 46?:|r 554 3? 32 543 536 -?

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