MATH 302 Study guides, Class notes & Summaries

MATH 302| STATISTICS| WEEK 6 QUIZ WITH ANSWERS| 2024 Question 1 (1 point) A manager wants to see if it worth going back for a MBA degree. They randomly sample 18 managers' salaries before and after undertaking a MBA degree and record their salaries in thousands of dollars. Assume Salaries are normally distributed. Test the claim that the MBA degree, on average, increases a manager's salary. Use a 10% level of significance. t-Test: Paired Two Sample for Means New Salary Old Salary Mean 6...

MATH 302| STATISTICS| FINAL EXAM 2024| WITH ANSWER KEY| GRADE A GUARANTEED

MATH 302| STATISTICS| WEEK 2 QUIZ WITH ANSWERS| 2024 0 / 1 point An instructor wants to compare spread (variation) of final grades of students in her online class and face-to-face class. The instructor selects 10 students randomly from each class and the following table shows the final grades of those students. See Attached Excel for Data. final grade The standard deviation of final grades for the online class is 7.832269 7.83 Use the information to respond to the following question:(round...

MATH 302| STATISTICS| WEEK 4 QUIZ WITH ANSWER KEY| 2024 Part 1 of 6 - Calculations of Probabilities Questions 3.0/ 3.0 Points Question 1 of 20 1.0/ 1.0 Points A dishwasher has a mean life of 11.5 years with an estimated standard deviation of 1.5 years ("Appliance life expectancy," 2013). Assume the life of a dishwasher is normally distributed. Find the number of years that the bottom 10% of dishwasher would last. Round answer to 2 decimal places. Answer: 9.58 Answer Key:9.58 Feedback: I...

MATH 302 WEEK 7 QUIZ WITH ANSWERS| STATISTICS| 2024 Which of the following equations are linear? 8x3+4y2 y=6x+8 3y=6x+5y2 y-x=8x2 View question 1 feedback Due to erosion, a river shoreline is losing several thousand pounds of soil each year. A linear equation that expresses the total amount of soil lost per year is y = 12,000x. How many pounds of soil does the shoreline lose in a year? Round to a whole number. Don't use any commas or decimals. Answer: ___12000___

MATH 302| STATISTICS| WEEK 5 QUIZ WITH ANSWERS| 2024 Question 1 1 / 1 point The population standard deviation for the height of college baseball players is 3.0 inches. If we want to estimate 95% confidence interval for the population mean height of these players with a 0.68 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number, do not include any decimals) Answer: 75 Hide Feedback Z-Critical Value = NORM.S.INV(.975) = 1.96 n = 32...

MATH 302 Final Exam Questions and Answers 2024

MATH 302 Final Exam Questions and Answers 2024

MATH 302 Final Exam Questions and Answers 2024

MATH 302| STATISTICS| WEEK 5 QUIZ WITH ANSWERS| 2024