©1990-2006 Daren B.H. Cline (copyright info).

Please read and scrupulously follow the Homework Policy for this class.
Note: The grader will reserve 10% of the homework score for clarity, neatness, etc.  This includes things like incorporating your computer output into your solutions as needed (not the other way around and not at the end) and stating your conclusions clearly (not just "reject H₀" or just giving a numerical answer).

Assignments will be posted here.

• Assignment 0 due Friday, 1 September (for practice and not collected but note Minitab options to set)
• Assignment 1 due Friday, 8 September (data available below: HW#1A, HW#1B, HW#1C)
• Assignment 2 due Friday, 15 September (data available below: HW#2A, HW#2B, HW#2C)
• Assignment 3 due Friday, 22 September (data available below: HW#3A, HW#3B, HW#3C)
• Assignment 4 due Wednesday, 4 October (data available below: HW#4A, HW#4B)
• Assignment 5 due Wednesday, 11 October (data available below: HW#5A, HW#5B)
• Assignment 6 due Friday, 20 October (data available below: HW#6B, HW#6C)
• Assignment 7 due Friday, 27 October (data available below: HW#7A, HW#7B, HW#7C, HW#7D)
• Assignment 8 due Friday, 17 November (data available below: HW#8A, HW#8B, HW#8C, HW#8D)
• Assignment 9 due Friday, 1 December

For your convenience, some datasets from the homework assignments will be provided here as Excel files. 

Octane Ratings Data (HW#1A).  octane.xls

 88.5  87.7  83.4  86.7  87.5  91.5  88.6 100.3
 95.6  93.3  94.7  91.1  91.0  94.2  87.8  89.9
 88.3  87.6  84.3  86.7  88.2  90.8  88.3  98.8
 94.2  92.7  93.2  91.0  90.3  93.4  88.5  90.1
 89.2  88.3  85.3  87.9  88.6  90.9  89.0  96.1
 93.3  91.8  92.3  90.4  90.1  93.0  88.7  89.9
 89.8  89.6  87.4  88.9  91.2  89.3  94.4  92.7
 91.8  91.6  90.4  91.1  92.6  89.8  90.6  91.1
 90.4  89.3  89.7  90.3  91.6  90.5  93.7  92.7
 92.2  92.2  91.2  91.0  92.2  90.0  90.7

Shower Flow Data, Devore Exer. 1.14 (HW#1B).  shower.xls

 4.6 12.3  7.1  7.0  4.0  9.2  6.7  6.9 11.5  5.1
11.2 10.5 14.3  8.0  8.8  6.4  5.1  5.6  9.6  7.5
 7.5  6.2  5.8  2.3  3.4 10.4  9.8  6.6  3.7  6.4
 8.3  6.5  7.6  9.3  9.2  7.3  5.0  6.3 13.8  6.2
 5.4  4.8  7.5  6.0  6.9 10.8  7.5  6.6  5.0  3.3
 7.6  3.9 11.9  2.2 15.0  7.2  6.1 15.3 18.9  7.2
 5.4  5.5  4.3  9.0 12.7 11.3  7.4  5.0  3.5  8.2
 8.4  7.3 10.3 11.9  6.0  5.6  9.5  9.3 10.4  9.7
 5.1  6.7 10.2  6.2  8.4  7.0  4.8  5.6 10.5 14.6
10.8 15.5  7.5  6.4  3.4  5.5  6.6  5.9 15.0  9.6
 7.8  7.0  6.9  4.1  3.6 11.9  3.7  5.7  6.8 11.3
 9.3  9.6 10.4  9.3  6.9  9.8  9.1 10.6  4.5  6.2
 8.3  3.2  4.9  5.0  6.0  8.2  6.3  3.8  6.0

Lung Fibroblast Data, Devore Exer. 1.25 (HW#1C).  fibro.xls

28.1	60.1	21.0
31.2	23.7	22.3
13.7	18.6	15.5
46.0	21.4	36.3
25.8	26.6	19.1
16.8	26.2	38.4
34.8	32.0	72.8
62.3	43.5	48.9
28.0	17.4	21.4
17.9	38.8	20.7
19.5	30.6	57.3
21.1	55.6	40.9
31.9	25.5	
28.9	52.1	

Phosphate Coating Data, Devore Exer. 12.1 (HW#2A).  phosphate.xls

Temp Ratio Temp Ratio Temp Ratio Temp Ratio Temp Ratio 
170  0.84  172  1.31  173  1.42  174  1.03  174  1.07
175  1.08  176  1.04  177  1.80  180  1.45  180  1.60
180  1.61  180  2.13  180  2.15  181  0.84  181  1.43
182  0.90  182  1.81  182  1.94  182  2.68  184  1.49
184  2.52  185  3.00  186  1.87  188  3.08

Concrete Data, Devore Exer. 12.15 (HW#2B).  concrete.xls

MoE  Strength  MoE  Strength  MoE  Strength  MoE  Strength  
29.8  5.9      33.2  7.2      33.7  7.3      35.3  6.3
35.5  8.1      36.1  6.8      36.2  7.0      36.3  7.6
37.5  6.8      37.7  6.5      38.7  7.0      38.8  6.3
39.6  7.9      41.0  9.0      42.8  8.2      42.8  8.7
43.5  7.8      45.6  9.7      46.0  7.4      46.9  7.7
48.0  9.7      49.3  7.8      51.7  7.7      62.6 11.6
69.8 11.3      79.5 11.8      80.0 10.7

Caffeine Intake Data (HW#2C).  awake.xls

Caffeine Time   Caffeine Time   Caffeine Time   Caffeine Time   
  268    110      248     42      240     42      254     72
  238     31      161     30      235     49      256     66
  150     32      304     64      246     60      185     27
  233     49      291     97      267     86      268     61
  309     89      208     28      277     58      249     70
  245     57      216     48      245     72      286     46
  272     41      180     33      229     55      196     42
  231     44

Biofiltration Data, Devore Exer. 12.82 (HW#3A).  biofilter.xls

 Temp Removal %  Temp Removal %  Temp Removal %  Temp Removal %
 7.68   98.09    6.51   98.25    6.43   97.82    5.48   97.82
 6.57   97.82   10.22   97.93   15.69   98.38   16.77   98.89
17.13   98.96   17.63   98.90   16.72   98.68   15.45   98.69
12.06   98.51   11.44   98.09   10.17   98.25    9.64   98.36
 8.55   98.27    7.57   98.00    6.94   98.09    8.32   98.25
10.50   98.41   16.02   98.51   17.83   98.71   17.03   98.79
16.18   98.87   16.26   98.76   14.44   98.58   12.78   98.73
12.25   98.45   11.69   98.37   11.34   98.36   10.97   98.45

Infectious Disease Data (HW#3B).  disease.xls

Time % Viable  Time % Viable  Time % Viable  Time % Viable  Time % Viable
  0    78.9      2    66.6      4    51.6      6    46.8      8    51.4
 10    40.7     12    43.0     14    43.9     16    34.6     18    36.7
 20    30.3     22    30.5     24    21.0     26    27.9     28    17.5
 30    23.9     32    19.7     34    19.1     36    17.1     38    20.0
 40    12.0     42    11.0     44    12.8     46     8.8     48    13.2
 50     9.2     52    10.9     54    11.1     56     7.7     58     7.1
 60     5.8 

Thermal Endurance Data, Devore Exer. 13.19 (HW#3C).  thermal.xls

Temp Time  Temp Time  Temp Time  Temp Time  Temp Time  Temp Time  
 200 5933   200 5404   200 4947   200 4963   200 3358   200 3878
 220 1561   220 1494   220  747   220  768   220  609   220  777
 240  258   240  299   240  209   240  144   220  180   240  184

Paddy Harvest Data (HW#4A).  paddy.xls

Date Yield  Date Yield  Date Yield  Date Yield 
  16  2498    17  2642    18  2781    19  2875
  20  2887    21  3076    22  3217    23  3231
  24  3302    25  3414    26  3455    27  3512
  28  3624    29  3670    30  3639    31  3642
  32  3712    33  3754    34  3678    35  3677
  36  3624    37  3651    38  3563    39  3527
  40  3458    41  3387    42  3267    43  3245

Flour Absorption Data, Devore Exer. 13.44 (HW#4B).  flour.xls

PROTEIN DAMAGE ABSORP  PROTEIN DAMAGE ABSORP
  8.5      2    30.9    12.9     24    47.0
  8.9      3    32.7    12.0     25    46.8
 10.6      3    36.7    12.9     28    45.9
 10.2     20    41.9    13.1     28    48.8
  9.8     22    40.9    11.4     32    46.2
 10.8     20    42.9    13.2     28    47.8
 11.6     31    46.3    11.6     35    49.2
 12.0     32    47.6    12.1     34    48.3
 12.5     31    47.2    11.3     35    48.6
 10.9     28    44.0    11.1     40    50.2
 12.2     36    47.7    11.5     45    49.6
 11.9     28    43.9    11.6     50    53.2
 11.3     30    46.8    11.7     55    54.3
 13.0     27    46.2    11.7     57    55.8

Coffee Harvest Data (HW#5A).  coffee.xls

HARVEST TEMP RAINFALL WORKERS PRICE    HARVEST TEMP RAINFALL WORKERS PRICE
 1888    85   3.1       115   1.31      1875    84    3.2      114   1.36
 1886    81   3.5       115   1.37      1867    85    3.9      114   1.26
 1902    80   3.2       115   1.35      1890    77    3.2      116   1.28
 1947    79   2.1       120   1.34      1896    78    3.0      117   1.29
 1860    80   3.0       114   1.28      1841    91    3.7      112   1.33
 1903    91   2.9       115   1.37      1910    85    3.1      117   1.33
 1881    91   3.4       115   1.32      1893    81    2.7      116   1.31
 1958    87   1.9       120   1.39      1895    82    3.3      116   1.32
 1871    82   3.1       114   1.31      1930    92    3.1      116   1.35
 1872    91   3.6       114   1.32      1917    85    2.4      117   1.35
 1963    80   2.4       117   1.37      1894    81    2.7      116   1.33
 1868    77   2.8       116   1.23      1948    83    3.2      115   1.38
 1860    86   3.0       114   1.29      1906    83    3.0      117   1.35
 1970    96   3.2       115   1.33      1908    89    2.4      116   1.38
 1864    88   3.3       114   1.27      1891   100    2.9      114   1.37
 1916    79   2.8       118   1.27      1888    73    3.2      115   1.26
 1891    93   3.0       115   1.34      1830    88    3.5      113   1.27
 1878    90   3.0       115   1.28      1892    85    3.5      116   1.30
 1869    89   3.1       114   1.30      1890    79    4.1      116   1.31
 1947    91   2.3       118   1.40      1874    81    2.8      116   1.26
 1943    85   2.5       118   1.38      1868    94    3.7      114   1.35
 1940    88   3.1       116   1.30      1865    87    3.5      113   1.33
 1953    78   2.7       118   1.38      1934    93    2.7      118   1.37
 1882    85   3.1       116   1.28      1869    85    3.3      114   1.32
 1889    87   3.4       113   1.41      1877    90    3.3      114   1.34
 1948    92   2.0       118   1.38      1912    82    2.4      118   1.30
 1879    93   3.6       115   1.31      1903    84    3.4      115   1.35
 1923    84   2.6       118   1.28      1933    90    2.6      118   1.35
 1850    90   3.2       113   1.29      1911    82    2.7      117   1.30
 1875    77   3.5       115   1.30      1942    87    2.9      116   1.39
 1901    87   3.2       115   1.37      1933    84    2.5      119   1.34
 1903    85   3.1       117   1.30      1937    91    2.7      119   1.36

Gasoline Additive Data (HW#5B).  gasoline.xls

ADDPCT MILEAGE  ADDPCT MILEAGE  ADDPCT MILEAGE  ADDPCT MILEAGE
 .0     28.1     .0     26.9     .0     26.7     .0     26.8 
 .0     26.4     .0     26.3     .0     26.6     .0     26.3 
 .0     26.7     .0     27.3     .0     26.9     .0     26.8 
 .0     26.5     .0     26.5     .0     27.6     .0     27.3 
 .0     27.6     .0     27.2     .0     26.4     .0     26.6 
 .1     28.8     .1     29.3     .1     28.6     .1     28.3 
 .1     28.9     .1     28.8     .1     28.1     .1     28.6 
 .1     28.8     .1     29.3     .1     28.0     .1     27.8 
 .1     28.3     .1     30.0     .1     29.1     .1     29.2 
 .1     29.1     .1     29.6     .1     28.7     .1     29.1 
 .2     29.4     .2     29.3     .2     29.3     .2     29.4 
 .2     29.1     .2     30.7     .2     29.8     .2     30.8 
 .2     30.3     .2     29.3     .2     29.1     .2     29.4 
 .2     28.8     .2     29.3     .2     29.8     .2     28.7 
 .2     29.1     .2     29.8     .2     30.2     .2     30.4 
 .3     30.6     .3     30.7     .3     30.7     .3     29.8 
 .3     30.7     .3     29.3     .3     30.2     .3     30.0 
 .3     30.3     .3     30.2     .3     29.7     .3     30.6 
 .3     29.5     .3     29.1     .3     29.8     .3     29.9 
 .3     29.8     .3     29.7     .3     30.0     .3     29.7 

Plate-Connected Truss Data (HW#6B and HW#7B).  truss.xls

Length        Stiffness (7 observations)
  4      309.2 409.5 311.0 326.5 316.8 349.8 309.7
  6      402.1 347.2 361.0 404.5 331.0 348.9 381.7
  8      392.4 366.2 351.0 357.1 409.9 367.3 382.0
 10      346.7 452.9 461.4 433.1 410.6 384.2 362.6
 12      407.4 441.8 419.9 410.7 473.4 441.2 465.8

Nitrogen Expiration Data (HW#6C).  expire.xls

Regimen Protein       Nitrogen Expired (9 observations)
   1       0    4.079 4.859 3.540 5.047 3.298 4.679 2.870 4.648 3.847
   2      23    4.368 5.668 3.752 5.848 3.802 4.844 3.578 5.393 4.374
   3      32    4.169 5.709 4.416 5.666 4.123 5.059 4.403 4.496 4.688
   4      67    4.928 5.608 4.940 5.291 4.674 5.038 4.905 5.208 4.806

Laboratory DNA Data (HW#7A).  dna.xls

Lab #     DNA (12 values)
Lab 1     23 23 25 22 27 22 20 22 18 23 25 21
Lab 2     27 19 27 17 23 27 20 27 32 18 21 20
Lab 3     17 20 19 22 20 16 19 24 21 21 21 16
Lab 4     29 27 22 28 28 23 30 25 23 26 22 30

Chemical Process Yield Data (HW#7C).  chemical.xls

Formulation Speed  Yield (3 obs.)     Formulation Speed  Yield (3 obs.)
     1        60  189.7 188.6 190.1        1        70  185.1 179.4 177.3
     1        80  189.0 193.0 191.1        2        60  165.1 165.9 167.6
     2        70  161.7 159.8 161.6        2        80  163.3 166.6 170.3

Construction Glue Data (HW#7D).  adhesive.xls

Temperature  Humidity Strength      Temperature  Humidity Strength
    60          50    40 41 43          60          70    38 39 37
    60          90    35 37 34          70          50    40 42 41
    70          70    37 36 34          70          90    33 33 30
    80          50    39 40 40          80          70    33 32 35
    80          90    29 31 31          90          50    36 36 35
    90          70    30 31 32          90          90    26 24 23

Dog Anesthesia Data (HW#8A).  anesthet.xls

Anesthetic  Concentration (by subject)
    1        .28  .51 1.00  .39  .29  .36  .32  .69  .17  .33
    2        .30  .39  .63  .38  .21  .88  .39  .51  .32  .42
    3       1.07 1.35  .69  .28 1.24 1.53  .49  .56 1.02  .30

Linear Programming Speed Data (HW#8B).  lpspeed.xls

Problem        1     2     3     4     5     6     7     8     9    10
Algorithm A  .464  .513  .295  .209  .199  .232  .401  .476  .354  .196
Algorithm B  .508  .511  .341  .241  .202  .228  .429  .491  .358  .248
Algorithm C  .517  .566  .370  .238  .238  .317  .468  .550  .423  .281
Algorithm D  .524  .545  .439  .293  .274  .316  .492  .566  .408  .307

Synthetic Fiber Strength Data (HW#8C).  synfiber.xls

Operator Machine (3 Strength Obs.)
1 1 109 108 106  1 2 112 115 116  1 3 108 109 111  1 4 110 108 108
2 1 110 111 108  2 2 114 111 112  2 3 111 109 112  2 4 114 112 111
3 1 112 114 110  3 2 112 115 114  3 3 114 119 118  3 4 120 117 117
4 1 107 107 105  4 2 110 111 111  4 3 110 109 107  4 4 109 108 110 

Disk Drive Repair Time Data (HW#8D).  diskdrive.xls

Drive Type	Technician	Service Repair Times
1		1		51.0 51.9 51.8 49.7 51.6
2		1		51.6 50.4 49.5 51.5 50.3
3		1		49.5 46.4 50.2 49.3 50.4
1		2		61.1 61.9 63.0 63.2 61.2
2		2		61.2 57.6 59.1 60.4 59.7
3		2		60.0 59.5 59.4 59.5 58.5
1		3		70.6 70.2 70.8 69.8 72.4
2		3		70.7 69.0 71.2 70.8 71.7
3		3		68.0 67.7 70.8 69.5 69.2

Please read and be familiar with the Exam Policy for this class.

Information about each exam will be posted here.

• Exam I   Wednesday, 27 September, 9:10am.  The content will cover the material through Assignment 3 and Chapter II, Section D, of the lecture notes.  Questions will be a mixture of computation, interpretation and definition.  There will be computer output provided in the exam - you need to be able both to interpret it and to fill in the gaps I may leave.  See below for practice exams. Recall that you may bring one page of notes of your own construction.
  In this summary of topics, see items I.a–f and II.a–e.
  Here are solutions for Exam I.
• Exam II   Friday, 3 November.  The content will cover the material through Chapter III, Section E, of the lecture notes and Assignment 7, including the material covered for the first exam as it pertains to the later material.  Students often find the second exam tougher than the first (more material), so prepare accordingly.  See below for copies of my previous exams.  For this exam you will be allowed 2 pages of notes of your own construction, as well as your calculator and statistical tables.
  Here is an updated summary of topics.
  Here are solutions for Exam II.
• Final Exam   Monday, 11 December, 8:00am–10:00am.  The final exam will be comprehensive.  It will emphasize experimental design and categorical data analysis, but expect material from the earlier parts of the course.   In particular, some questions may combine material from different parts of the course.  Just as before, there will be computer output provided in the exam and you need to be able both to interpret it and to fill in any gaps.
  For this exam you will be allowed 4 pages of notes of your own construction, as well as statistical tables.
  Here is an complete summary of topics.
  

©1990-2006 Daren B.H. Cline (copyright info).

These exams are meant to illustrate the style and breadth of questions I use.  I make no promises that their content will match the content of the exams for this semester.  In fact, they do not even agree completely with each other as to content.

I have put three sets of exams here.  The exams from 2002 and 2004 are mine but are not multiple choice as will be the exams this semester.   The exams from 2003 are courtesy of Dr. Wehrly and are multiple choice.  My multiple choice questions may differ a little in style from Dr. Wehrly's but my exams will not be greatly different from his.
The 2004 Exams probably best correspond to the topics for your exams. The 2002 and 2003 exams do cover the same material but, for example, Exam I may have material that will be in your Exam II.

The answers provided are only partial and do not comprise all you need to know.

Exam I (Spring 2002) (not multiple choice)   (with partial answers) Exam II (Spring 2002) (not multiple choice)   (with partial answers) Final Exam (Spring 2002) (not multiple choice)   (with partial answers)

Exam I (Spring 2004) (not multiple choice)   (with partial answers) Exam II (Spring 2004) (not multiple choice)   (with partial answers) Final Exam (Spring 2004) (not multiple choice)   (with partial answers)

Dr. Wehrly's Exam I (Fall 2003) (multiple choice)   (with answers) Dr. Wehrly's Exam II (Fall 2003) (multiple choice)   (with answers) Dr. Wehrly's Final Exam (Fall 2003) (multiple choice)   (with answers)