Math 243: Quiz Procedures and Guidelines - Prof. N. Phillips, Exams of Probability and Statistics

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Math 243: Procedural information

N. Christopher Phillips

23 April 2009

Quizzes

The GTFs (and I) will not answer the question, “Please do a problem like one that will be on the upcoming quiz” (or midterm, final exam, etc.).

Quizzes

The GTFs (and I) will not answer the question, “Please do a problem like one that will be on the upcoming quiz” (or midterm, final exam, etc.). Learn the material. Ask questions about the things you do not understand.

Quiz 4 (today or tomorrow) will ask for the computation of a confidence interval.

Quizzes

The GTFs (and I) will not answer the question, “Please do a problem like one that will be on the upcoming quiz” (or midterm, final exam, etc.). Learn the material. Ask questions about the things you do not understand.

Quiz 4 (today or tomorrow) will ask for the computation of a confidence interval. Either the midterm or Quiz 5 (after the midterm) will ask for the definition of an influential point for some statistical calculation (not necessarily the same one as already appeared on a quiz).

Quizzes

The GTFs (and I) will not answer the question, “Please do a problem like one that will be on the upcoming quiz” (or midterm, final exam, etc.). Learn the material. Ask questions about the things you do not understand.

Quiz 4 (today or tomorrow) will ask for the computation of a confidence interval. Either the midterm or Quiz 5 (after the midterm) will ask for the definition of an influential point for some statistical calculation (not necessarily the same one as already appeared on a quiz). In general, future quizzes will sometimes have review questions.

Quizzes 2 and 3 and their solutions have been posted.

Quizzes

The GTFs (and I) will not answer the question, “Please do a problem like one that will be on the upcoming quiz” (or midterm, final exam, etc.). Learn the material. Ask questions about the things you do not understand.

Quiz 4 (today or tomorrow) will ask for the computation of a confidence interval. Either the midterm or Quiz 5 (after the midterm) will ask for the definition of an influential point for some statistical calculation (not necessarily the same one as already appeared on a quiz). In general, future quizzes will sometimes have review questions.

Quizzes 2 and 3 and their solutions have been posted. Quiz 4 and its solutions have not yet been posted.

Four significant digits required

All numerical answers other than integers must be given to at least four significant digits (unless otherwise specified). In particular, do this on quizzes and exams. The following have exactly four significant digits:

124. 6 0. 005628 45. 70 12 , 760.

Four significant digits required

All numerical answers other than integers must be given to at least four significant digits (unless otherwise specified). In particular, do this on quizzes and exams. The following have exactly four significant digits:

124. 6 0. 005628 45. 70 12 , 760.

The following have less than four significant digits, and will lose points even if all digits shown are correct:

Four significant digits required

All numerical answers other than integers must be given to at least four significant digits (unless otherwise specified). In particular, do this on quizzes and exams. The following have exactly four significant digits:

124. 6 0. 005628 45. 70 12 , 760.

The following have less than four significant digits, and will lose points even if all digits shown are correct:

124 0. 0056 45. 7 0. 00006.

124 is an answer of the correct form for a question requiring an integer as an answer. (“How big does the sample have to be to get a margin of error less than 0.25?”) It isn’t of the correct form for a question asking for the mean or standard deviation of something.

Four significant digits required

All numerical answers other than integers must be given to at least four significant digits (unless otherwise specified). In particular, do this on quizzes and exams. The following have exactly four significant digits:

124. 6 0. 005628 45. 70 12 , 760.

The following have less than four significant digits, and will lose points even if all digits shown are correct:

124 0. 0056 45. 7 0. 00006.

124 is an answer of the correct form for a question requiring an integer as an answer. (“How big does the sample have to be to get a margin of error less than 0.25?”) It isn’t of the correct form for a question asking for the mean or standard deviation of something. “45.7” doesn’t have four significant digits even if the correct answer is 45. 70. However, if exact answers are asked for, and 45.7 is exactly correct, you need not show the extra zero.

Four significant digits required (continued)

Integer answers must always be given exactly, including all digits. So “12,760” won’t be accepted for a sample size question if the correct answer is 12, 763. To get four significant digits, all intermediate calculations must be done to at least five, preferably six, significant digits.

Four significant digits required (continued)

Integer answers must always be given exactly, including all digits. So “12,760” won’t be accepted for a sample size question if the correct answer is 12, 763.

Midterm and review sessions

The midterm and final will have a mixture of multiple choice questions, fill in the blank questions (mostly asking for numerical answers), and problems for which you are asked to show your work (or write a description, say of an experiment).

Midterm and review sessions

The midterm and final will have a mixture of multiple choice questions, fill in the blank questions (mostly asking for numerical answers), and problems for which you are asked to show your work (or write a description, say of an experiment).

The midterm is Tuesday of 6th week (the week after next). Some sample problems will be posted sometime next week.