Standard Course Week 8 ESTIMATING PARAMETERS BASED ON SAMPLES (Cont'd) Continue practicing Sampling and Statistical Inference (II): Beware the definition of α in inverse probability functions Interval estimate for any Normally distributed statistic Population proportion based on sample proportion Conditional formatting Confidence limits for population variance and population standard deviation based on sample variability. THIS WEEK'S TEXTBOOK CHAPTER Continue studying Chapter 7. Edit Students can manually mark this item complete: THIS WEEK'S TEXTBOOK CHAPTER Continue studying Ch... Statistics Text Chapter 7 -- Sampling and inference URL Edit title Edit Students can manually mark this item complete: Statistics Text Chapter 7 -- Sampling and inference LEARNING OBJECTIVES FOR THIS WEEK New this week: Decide whether random samples taken to estimate parametric proportions conform to the assumptions of the Normal approximation Compute confidence limits for proportions based on samples suitable for use of the Normal approximation Compute confidence limits for variances based on random samples from Normal populations using the chi-square distribution Started last week and continued: By the end of chapter 7, which you started LAST week, students work on consolidating and extending their expertise in handling confidence limits and related concepts; they should be able to Distinguish between a sample and a population in a specific situation Use the terms "sample statistic" and "parameter" correctly Recognize and name the Greek letters used for representing parameters Define what makes a sample a random sample Recognize a biased sample from the description of how it was selected Use random number functions RAND() and RANDBETWEEN() to select unbiased sample data from a data collection Explain why pseudo-random number generators can create non-random sequences Define the meaning of p for a null hypothesis in statistical tests Describe the implications of the Central Limit Theorem for sampling distributions Define the expected value of the sample mean Define and compute the standard error of the mean given the observed sample standard deviation and the sample size Explain the meaning of the term parametric statistics as applied to the descriptive and inferential statistics you are currently studying Estimate roughly what proportion of a Normal distribution lies within 1 or 2 standard deviations from the mean Compute confidence limits using Normal, t,and chi-square istributions Edit Students can manually mark this item complete: LEARNING OBJECTIVES FOR THIS WEEK New this week: ... REVIEW Edit Students can manually mark this item complete: REVIEW qm213_wk_08_review questions.pdf File Edit title Edit Students can manually mark this item complete: qm213_wk_08_review questions.pdf Examples of questions you will answer in your weekly quiz. HOMEWORK ASSIGNMENTS Edit Students can manually mark this item complete: HOMEWORK ASSIGNMENTS qm213_homework_wk_08_part_1.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk_08_part_1.xlsx Confidence limits for proportions. qm213_homework_wk_08_part_2.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk_08_part_2.xlsx CL for variances qm213_homework_wk_08_part_3_graded.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk_08_part_3_graded.xlsx Graded exercises on confidence limits for proportions and for variances. HOMEWORK GRADING & UPLOADS Edit Students can manually mark this item complete: HOMEWORK GRADING & UPLOADS hg_wk08_p3 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk08_p3 Homework-grading questions for week 08 exercises part 3. 10 questions, 20 minutes, 1 try. If you find errors in your homework, fix them and then use the hg_wk##r quiz. Higher grade in the hg_wk##r quiz replaces lower grade in hg_wk## quiz. hg_wk08_p3r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk08_p3r Replacement homework-grading questions for week 08 exercises part 3. 10 questions, 20 minutes, 1 try. If you find errors in your homework using the hg_wk## quiz, fix them and then use the hg_wk##r quiz. Higher grade in the hg_wk##r quiz replaces lower grade in hg_wk## quiz. hu08 Assignment Edit title Edit No groups (Click to change) Students can manually mark this item complete: hu08 Upload all 3 homework files for week 8. QUIZ Edit Students can manually mark this item complete: QUIZ q8 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q8 15 questions, 30 minutes, 1 try. q8r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q8r 20 questions, 20 minutes, 1 try. You must complete q8 before attempting q8r. Higher grade in q8r replaces lower grade in q8.