[SOLUTIONS] MATH225N Week 8 Final Exam: Week 5 – 8
Solutions Question 1 Data is collected on the relationship between time spent playing video games and time spent with family. The data is shown in the table and the line […]
[Solved] MATH225N Week 8 Assignment: Coefficient of Determination
Q1 A scientific study on mesothelioma caused by asbestos gives the following data table. Micrograms of asbestos inhaled Area of scar tissue (cm2) 58 162 62 189 63 188 […]
[Solved] MATH225N Week 8 Assignment: Predictions Using Linear Regression
Q1 Data is collected on the relationship between time spent playing video games and time spent with family. The data is shown in the table and the line of best […]
[Solved] MATH225N Week 8 Assignment: Correlation and Causation
Question True or False: The more samples taken in a scientific study, the longer the amount of time it will take to complete the research on the samples. Question Suppose […]
[Solved] MATH225N Week 8 Assignment: Performing Linear Regressions with Technology – Excel
Question The table below shows data on annual expenditure, x (in dollars), on recreation and annual income, y (in dollars), of 20 families. Use Excel to find the best fit linear […]
[Solved] MATH225N Week 8 Assignment: Linear Regression Equations
Q1 A shoe designer explored the relationship between the percent of defects and the percent of new machines at various production facilities throughout the state. The designer collects information from 6 of their facilities, shown in […]
[Solved] MATH225N Week 8 Discussion: Correlation and Regression
Initial Post Instructions If a regression analysis was to be completed on body mass index (BMI), what could be an independent variable in that analysis? Why? If we could, what […]
[Solved] MATH225N Week 7 Assignment: Hypothesis Test for the Mean – Population Standard Deviation Known
Q1 Which graph below corresponds to the following hypothesis test? H0:μ≥5.9, Ha:μ<5.9 Ans: Q2 Which of the hypothesis tests listed below is a left-tailed test? Select all correct answers. Ans: H0:μ≥18, Ha:μ<18 H0:μ≤19.3, Ha:μ>19.3 H0:μ=8, Ha:μ≠8 […]
[Solved] MATH225N Week 7 Assignment: Construct Hypothesis Test for Proportions – Excel
Question Steve listens to his favorite streaming music service when he works out. He wonders whether the service’s algorithm does a good job of finding random songs that he will […]
