Essentials of Statistics for the Behavioral Sciences 6th edition

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Frederick J Gravetter
Publisher: Cengage Learning

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  • Chapter 1: Introduction to Statistics
    • 1: Tutorials (5)
    • 1: End of Chapter Problems (22)
    • Test Bank (76)

  • Chapter 2: Frequency Distributions
    • 2: Tutorials (2)
    • 2: End of Chapter Problems (23)
    • Test Bank (76)

  • Chapter 3: Central Tendency
    • 3: Tutorials (5)
    • 3: Simulations (1)
    • 3: End of Chapter Problems (18)
    • Test Bank (78)

  • Chapter 4: Variability
    • 4: Tutorials (6)
    • 4: End of Chapter Problems (20)
    • Test Bank (76)

  • Chapter 5: z-Scores: Location of Scores and Standardized Distributions
    • 5: Tutorials (4)
    • 5: Simulations (1)
    • 5: End of Chapter Problems (21)
    • Test Bank (77)

  • Chapter 6: Probability
    • 6: Tutorials (8)
    • 6: End of Chapter Problems (20)
    • Test Bank (77)

  • Chapter 7: Probability and Samples: The Distribution of Sample Means
    • 7: Tutorials (5)
    • 7: Simulations (1)
    • 7: End of Chapter Problems (21)
    • Test Bank (77)

  • Chapter 8: Introduction to Hypothesis Testing
    • 8: Tutorials (5)
    • 8: Simulations (1)
    • 8: End of Chapter Problems (19)
    • Test Bank (76)

  • Chapter 9: Introduction to the t Statistic
    • 9: Tutorials (5)
    • 9: Simulations (1)
    • 9: End of Chapter Problems (20)
    • Test Bank (77)

  • Chapter 10: The t Test for Two Independent Samples
    • 10: Tutorials (6)
    • 10: Simulations (1)
    • 10: End of Chapter Problems (20)
    • Test Bank (76)

  • Chapter 11: The t Test for Related Samples
    • 11: Tutorials (4)
    • 11: Simulations (1)
    • 11: End of Chapter Problems (20)
    • Test Bank (77)

  • Chapter 12: Estimation
    • 12: Tutorials (6)
    • 12: Simulations
    • 12: End of Chapter Problems (20)
    • Test Bank (74)

  • Chapter 13: Introduction to Analysis of Variance
    • 13: Tutorials (5)
    • 13: Simulations
    • 13: End of Chapter Problems (20)
    • Test Bank (76)

  • Chapter 14: Repeated-Measures and Two-Factor Analysis of Variance
    • 14: Tutorials (5)
    • 14: Simulations
    • 14: End of Chapter Problems (39)
    • Test Bank (77)

  • Chapter 15: Correlation and Regression
    • 15: Tutorials (5)
    • 15: Simulations
    • 15: End of Chapter Problems (38)
    • Test Bank (77)

  • Chapter 16: The Chi-Square Statistic: Tests for Goodness of Fit and Independence
    • 16: Tutorials (4)
    • 16: Simulations
    • 16: End of Chapter Problems (20)
    • Test Bank (74)

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The Tutorial and Simulation problems walk students through statistics problems, noticing when they get off track to provide feedback on how to do the problem correctly. For some problem types, variables, numbers, or words have been randomized so that students will receive a unique version each time they try the problem, allowing them to practice until they fully understand the concepts.

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Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

Question Group Key
EOC - End of Chapter Problem
EOC.alt - End of Chapter Problem - modified from textbook problem
EOC.X - Bonus problem not in textbook
TB - Test Bank
Tut - Tutorial
Sim - Simulation


Question Availability Color Key
BLACK questions are available now
GRAY questions are under development


Group Quantity Questions
Chapter 1: Introduction to Statistics
1.EOC 22 X01 X02 X03 X04 X05 X06 X07 X08 X09 X10 X11 003 010 012 014 015 017 018 019 020 023.alt 025.alt
1.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
1.Tut 5 01 02 03 04 05
Chapter 2: Frequency Distributions
2.EOC 23 X01 X02 X03 X04 X05 X06 X07 X08 X09 X10 X11 X12 X13 X14 X16 003 004 005 006 008.alt 015 016 020
2.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
2.Tut 2 01 02
Chapter 3: Central Tendency
3.EOC 18 X01 X02 X03 004 007 009 011 011.alt 012 013.alt 014 015 017 018.alt 019.alt 021 023 024
3.Sim 1 01
3.TB 78 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077 078
3.Tut 5 01 02 03 04 05
Chapter 4: Variability
4.EOC 20 X01 X02 X03 X04 X05 004 007 008 009 010 011 016.alt 017.alt 019.alt 020 021 022 023 024 026
4.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
4.Tut 6 01 02 03 04 05 06
Chapter 5: z-Scores: Location of Scores and Standardized Distributions
5.EOC 21 X01 002 003 004 008 009 010 011 012 013 014 015 016 018 019 021 022 023 025 027 028
5.Sim 1 01
5.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
5.Tut 4 01 02 03 04
Chapter 6: Probability
6.EOC 20 X01 X02 X03 X04 001 002 005 007 009 010 011 012 014.alt 015 016 017 018 019 022 024
6.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
6.Tut 8 01 02 03 04 05 06 07 08
Chapter 7: Probability and Samples: The Distribution of Sample Means
7.EOC 21 X01 X02 X03 X04 X05 002.alt 004 005 006.alt 008.alt 009.alt 010.alt 012 013 014.alt 015.alt 018.alt 021 022 023 024
7.Sim 1 01
7.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
7.Tut 5 01 02 03 04 05
Chapter 8: Introduction to Hypothesis Testing
8.EOC 19 X01 X02 X03 X04 X05 X06 001 004.alt 007 009 011 012 013 014 015 016 019 020 021
8.Sim 1 01
8.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
8.Tut 5 01 02 03 04 05
Chapter 9: Introduction to the t Statistic
9.EOC 20 X01 X02 X03 X04 004 006 009 010 011.alt 012 013 015 016 017 018 019 020 022 023 024
9.Sim 1 01
9.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
9.Tut 5 01 02 03 04 05
Chapter 10: The t Test for Two Independent Samples
10.EOC 20 X01 X02 X03 X04 X05 005 006 008.alt 009 010 014 015 016 017 019 020 021.alt 023 024 025
10.Sim 1 01
10.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
10.Tut 6 01 02 03 04 05 06
Chapter 11: The t Test for Related Samples
11.EOC 20 X01 X02 X03 X04 X05 X06 X07 X08 001 008.alt 010.alt 011 012 013 014 018.alt 021.alt 022.alt 023.alt 024
11.Sim 1 01
11.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
11.Tut 4 01 02 04 05
Chapter 12: Estimation
12.EOC 20 X01 X02 X03 X04 X05 X06 001 004 006 008 010 011 013 015.alt 016 017 018 019 020 022
12.TB 74 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074
12.Tut 6 01 02 03 04 05 06
Chapter 13: Introduction to Analysis of Variance
13.EOC 20 X01 X02 X03 X04 X05 X06 X07 003 007 008.alt 009.alt 010.alt 013 014 015 016 018 021 023.alt 025.alt
13.TB 76 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076
13.Tut 5 01 02 03 04 05
Chapter 14: Repeated-Measures and Two-Factor Analysis of Variance
14.EOC 39 X01 X02 X03 X04 X05 X06 X07 X08 X09 X10 X11 X12 X13 X14 X15 X16 X17 X18 X19 X20 X21 X22 X23 X24 X25 X26 X27 X28 X29 003 008 009 011.alt 012.alt 013 015 021 025.alt 026
14.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
14.Tut 5 01 02 03 04 05
Chapter 15: Correlation and Regression
15.EOC 38 X01 X02 X03 X04 X05 X06 X07 X08 X09 X10 X11 X12 X13 X14 X15 X16 X17 X18 X19 X20 004.alt 006 007 009.alt 010.alt 011 012 013.alt 014 015 016 017 021.alt 022 022.alt 023.alt 024 028
15.TB 77 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077
15.Tut 5 01 02 03 04 05
Chapter 16: The Chi-Square Statistic: Tests for Goodness of Fit and Independence
16.EOC 20 X01 X02 X03 X04 X05 X06 X07 X08 X09 003 004 005 008 009 011 014 015 016 018 021
16.TB 74 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074
16.Tut 4 01 02 03 04
Total 1669