Cable car times Student teams competed in a cable car compet

Cable car times: Student teams competed in a cable car competition and recorded their times to race across a 50 m test cable. The following times were recorded (in seconds): 8.50, 12.67, 13.50, 9.28, 10.05, 10.67, 10.05, 19.83, 15.44, 17.59, 9.77, 8.88, (add 24 more values distributed between 5.00 and 20.00) Enter the values above into Notepad in a format so that they can be read into a single column vector or row vector. Save the text file using your last name and the problem number for the file name. Write a MATLAB program to read the text file and use functions in MATLAB to find and display each of the following (including units). The program should work for a file with any number of values (not just for 36). Average time Median time Mode Standard deviation Number of cable car runs recorded tested Standard deviation Maximum time Minimum time Display the original times (4 per line) with a descriptive heading Sort the times from smallest to largest and display them again (4 per line) with a descriptive heading. Submit a copy of the text file, a copy of the MATLAB program, and a copy of the MATLAB output. All MATLAB programs should begin with a block of comments including name, course, assignment number, problem number, and a brief description of the program. Also include comments throughout the program.

Solution

>> %Enter 8.5,12.67,13.5,9.28,10.45,10.67,10.05,19.83,15.44,17.59,9.77,8.88,9.75,13.92,14.75,10.53,11.7,11.92,11.3,19.94,16.69,18.84,11.02,10.13,11,15.17,16,11.78,12.95,13.17,12.55,13.69,17.94,20.09,12.27,11.38 these 36 numbers in text file and save it as Gilat_6.txt
>> [x]=textread(\'Gilat_6.txt\',\'%f\');
>> x

x =

    8.5000
   12.6700
   13.5000
    9.2800
   10.4500
   10.6700
   10.0500
   19.8300
   15.4400
   17.5900
    9.7700
    8.8800
    9.7500
   13.9200
   14.7500
   10.5300
   11.7000
   11.9200
   11.3000
   19.9400
   16.6900
   18.8400
   11.0200
   10.1300
   11.0000
   15.1700
   16.0000
   11.7800
   12.9500
   13.1700
   12.5500
   13.6900
   17.9400
   20.0000
   12.2700
   11.3800

>> %average time is
>> mean(x)

ans =

   13.1975

>> % median time is
>> median(x)

ans =

   12.4100

>> %Mode is
>> mode(x)

ans =

    8.5000

>> %standard deviation is
>> std(x)

ans =

    3.3246

>> %number of cable car runs is
>> sum(x)/50

ans =

    9.5022

>> %standard deviation is
>> std(x)

ans =

    3.3246

>> %maximum time is
>> max(x)

ans =

   20.0000

>> %minimum time is
>> min(x)

ans =

    8.5000

>> %original time
>> [x(1) x(2) x(3) x(4);x(5) x(6) x(7) x(8);x(9) x(10) x(11) x(12);x(13) x(14) x(15) x(16);x(17) x(18) x(19) x(20);x(21) x(22) x(23) x(24);x(25) x(26) x(27) x(28);x(29) x(30) x(31) x(32);x(33) x(34) x(35) x(36)]

ans =

    8.5000   12.6700   13.5000    9.2800
   10.4500   10.6700   10.0500   19.8300
   15.4400   17.5900    9.7700    8.8800
    9.7500   13.9200   14.7500   10.5300
   11.7000   11.9200   11.3000   19.9400
   16.6900   18.8400   11.0200   10.1300
   11.0000   15.1700   16.0000   11.7800
   12.9500   13.1700   12.5500   13.6900
   17.9400   20.0000   12.2700   11.3800

>> %sorting the numbers
>> sort(x)

ans =

    8.5000
    8.8800
    9.2800
    9.7500
    9.7700
   10.0500
   10.1300
   10.4500
   10.5300
   10.6700
   11.0000
   11.0200
   11.3000
   11.3800
   11.7000
   11.7800
   11.9200
   12.2700
   12.5500
   12.6700
   12.9500
   13.1700
   13.5000
   13.6900
   13.9200
   14.7500
   15.1700
   15.4400
   16.0000
   16.6900
   17.5900
   17.9400
   18.8400
   19.8300
   19.9400
   20.0000