Category: Statistics

61, 63,65, 71,75 is the question I need and explanations , no need to write the question out Requirements: All answers

Retailers rarely have time or resources to analyze every product in their catalog. Instead, they rely on samples of data to make pricing decisions that can shape revenue and competitiveness. This project challenges you to compare a full product population against a smaller sample, evaluate the accuracy of sampling, and uncover risks tied to sampling…

Retailers rarely have time or resources to analyze every product in their catalog. Instead, they rely on samples of data to make pricing decisions that can shape revenue and competitiveness. This project challenges you to compare a full product population against a smaller sample, evaluate the accuracy of sampling, and uncover risks tied to sampling…

EPSY 710 Introduction to Statistical Analysis Homework #2 76 points possible Due: February 24, 2026 at 11:59pm CST Directions: For this homework assignment, you must show all of your calculations unless specifically directed not to do so. If you choose to use Excel for calculations, you must include a column for each step in the…

EPSY 710 Introduction to Statistical Analysis Homework #2 76 points possible Due: February 24, 2026 at 11:59pm CST Directions: For this homework assignment, you must show all of your calculations unless specifically directed not to do so. If you choose to use Excel for calculations, you must include a column for each step in the…

Share a real-life application example when either confidence intervals or hypothesis testing can be used. Essential Activities: Reading Chapter 8: Confidence Intervals (Section 8.1 – Section 8.3) and Chapter 9: Hypothesis Testing (Section 9.1 – Section 9.4) will assist you in writing this discussion forum. Chapter 8 link: Chapter 9 link: Notes: Please refer to…

Your submission must be a single file (.pdf, .doc, or .docx). If parts of your submission are handwritten, be sure that your work is neat, legible, and organized. For questions requiring Excel, copy-paste your graphs, formulas, etc. into your document. Do not submit the Excel file itself. Hi please follow all the instructions and make…

FINISH ALL QUESTIONS Requirements: normal

For each of the research questions, identify the method of analysis to best answer the question. This is a review of t-tests, ANOVAs, correlation and regression. For example: Is there a significant difference between student GPAs and lunch preference for a peanut butter and jelly sandwich or cheese sandwich? IV= type of sandwich (PB&J or…

Activity 1 Compare three samples below using what you have learned so far in the class Sample A: 1, 2, 3, 4, 5, 6, 7 Sample B: 4, 4, 4, 4, 4, 4, 4 Sample C: 1, 1, 1, 4, 7, 7, 7 Requirements: 3 HOURS