Standard Course Week 7 RANDOM, UNBIASED SAMPLING INFERENCE EXPECTED VALUES CENTRAL LIMIT THEOREM Sampling and Statistical Inference Populations and samples Sample statistics and parameters Greek letters for parametric statistics Random sampling from a population Selecting random values for an unbiased sample Random number generators Probabilities in tossing coins Probabilities in statistical inference The central limit theorem in practice The expected value 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 Edit Students can manually mark this item complete: THIS WEEK'S TEXTBOOK CHAPTER 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 By the end of this chapter, students 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 Recognized 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 for a parametric mean using Normal and t distributions and the observed sample mean, standard deviation and sample size 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 distributions Edit Students can manually mark this item complete: LEARNING OBJECTIVES FOR THIS WEEK By the end of t... HOMEWORK ASSIGNMENTS Edit Students can manually mark this item complete: HOMEWORK ASSIGNMENTS qm213_homework_wk07_part_1.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_1.xlsx Working with RAND and RANDBETWEEN functions (useful when selecting random values of samples). Observing the frequency distributions generated by these pseudorandom-number functions. qm213_homework_wk07_part_2_graded.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_2_graded.xlsx Practice with the Normal and the t distributions. qm213_homework_wk07_part_3_graded.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_3_graded.xlsx Practice computing confidence limits for the mean using various functions in Excel. qm213_homework_wk07_part_4.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_4.xlsx Confidence limits for proportions. qm213_homework_wk07_part_5.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_5.xlsx CL for variances qm213_homework_wk07_part_6_graded.xlsx File Edit title Edit Students can manually mark this item complete: qm213_homework_wk07_part_6_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_wk07_p2 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk07_p2 hg_wk07_p2r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk07_p2r hg_wk07_p3 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk07_p3 hg_wk07_p3r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: hg_wk07_p3r hu07 Assignment Edit title Edit No groups (Click to change) Students can manually mark this item complete: hu07 Upload your 3 completed GRADED homework files here: qm213_homework_... wk07_part_2_graded.xlsx wk07_part_3_graded.xlsx wk07_part_6_graded.xlsx Do NOT upload archive (ZIP, RAR, etc.) files because they force the prof to open them to extract the files. REVIEW Edit Students can manually mark this item complete: REVIEW qm213_wk07p1_review_questions.pdf File Edit title Edit Students can manually mark this item complete: qm213_wk07p1_review_questions.pdf qm213_wk07p2_review_questions.pdf File Edit title Edit Students can manually mark this item complete: qm213_wk07p2_review_questions.pdf QUIZZES Edit Students can manually mark this item complete: QUIZZES q07p1 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p1 20 questions, 40 minutes, 1 try. q07p1a Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p1a q07p1r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p1r q07p1ar Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p1ar q07p2 Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p2 q07p2a Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p2a q07p2r Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p2r q07p2ar Quiz Edit title Edit No groups (Click to change) Students can manually mark this item complete: q07p2ar