Math 302 week Study guides, Class notes & Summaries
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MATH 302 WEEK 3 TEST-with 100% verified solutions
![MATH 302| STATISTICS| WEEK 2 QUIZ WITH ANSWERS| 2024](/docpics/4800900/65fbfaa365e6c_4800900_121_171.jpeg)
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MATH 302| STATISTICS| WEEK 2 QUIZ WITH ANSWERS| 2024
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MATH 302| STATISTICS| WEEK 2 QUIZ 
WITH ANSWERS| 2024 
0 / 1 point 
An instructor wantsto compare spread (variation) of final grades ofstudentsin 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 gradesfor the online class is 
7.832269 
7.83 
Use the information to respond to the following question:(roun...
![MATH302 Week 6 Test](/docpics/3800983/654cc82fdbafa_3800983_121_171.jpeg)
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MATH302 Week 6 Test
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1.	Question: A manager wishes to see if the time (in minutes) it takes for their workers to complete a certain task is faster if they are wearing earbuds. A random sample of 20 workers' times were collected before and after wearing earbuds. Test the claim that the time to complete the task will be faster, i.e. meaning has production increased, at a significance level of α = 0.01 For the context of this problem, µD = µbefore−µafter where the first data set represents before earbuds and the...
![MATH302 Week 8 Test](/docpics/3801111/654ccd29cca91_3801111_121_171.jpeg)
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MATH302 Week 8 Test
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1.	Question: A large department store is curious about what sections of the store make the most sales. The manager has data from ten years prior that show 30% of sales come from Clothing, 25% Home Appliances, 18% Housewares, 13% Cosmetics, 12% Jewelry, and 2% Other. In a random sample of 550 current sales, 188 came from Clothing, 153 Home Appliances, 83 Housewares, 54 Cosmetics, 61 Jewelry, and 11 Other. At α=0.10, can the manager conclude that the distribution of sales among the departments ha...
![MATH 302| STATISTICS| WEEK 4 QUIZ WITH ANSWER KEY| 2024](/docpics/4802876/65fc331965e48_4802876_121_171.jpeg)
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MATH 302| STATISTICS| WEEK 4 QUIZ WITH ANSWER KEY| 2024
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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...
![MATH 302| STATISTICS| WEEK 1 QUIZ| 2024| AMERICAN MILITARY UNIVERSITY](/docpics/4800661/65fbf2f114fb6_4800661_121_171.jpeg)
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MATH 302| STATISTICS| WEEK 1 QUIZ| 2024| AMERICAN MILITARY UNIVERSITY
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MATH 302| STATISTICS| WEEK 1 QUIZ| 2024| 
AMERICAN MILITARY UNIVERSITY 
Question 1 1 / 1 point 
Duration (amount of time) is what type of data in the 
scenario? A study was done to determine the age, the number 
of times per week, and the duration (amount of time) of 
residents using a local park in San Antonio, Texas. The first 
house in the neighborhood around the park was selected 
randomly, and then the resident of every eighth house in the 
neighborhood around the park was interviewed. 
Que...
MATH 302| STATISTICS| WEEK 5 QUIZ WITH ANSWERS| 2024
![MATH302 Week 7 Test](/docpics/4061578/6582f91062bde_4061578_121_171.jpeg)
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MATH302 Week 7 Test
- Exam (elaborations) • 47 pages • 2023
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1.	Question: The least squares regression line for a data set is yˆ=5+0.3x and the standard deviation of the residuals is 0.4. Does a case with the values x = 3.3, y = 7.2 qualify as an outlier? 
2.	Question: The least squares regression line for a data set is yˆ=5+0.3x and the standard deviation of the residuals is 0.52. Does a case with the values x = -1.59, y = 5.78 qualify as an outlier? 
3.	Question: The following data represent the weight of a child riding a bike and the rolling distance...
![MATH302 Week 7 Knowledge Check Homework Practice Questions](/docpics/4061562/6582f89e684dc_4061562_121_171.jpeg)
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MATH302 Week 7 Knowledge Check Homework Practice Questions
- Exam (elaborations) • 38 pages • 2023
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1.	Question: A vacation resort rents SCUBA equipment to certified divers. The resort charges an up-front fee of $25 and another fee of $12.50 an hour. What is the dependent variable? 
2.	Question: Which of the following equations are linear? 
3.	Question: You are thinking about opening up a Starbucks in your area but what to know if it is a good investment. How much money do Starbucks actually make in a year? 
4.	Question: You move out into the country and you notice every Spring there are more ...
![MATH302 Week 2 Test](/docpics/4061223/6582ea4ba1d2c_4061223_121_171.jpeg)
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MATH302 Week 2 Test
- Other • 19 pages • 2023
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1.	Question: 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. 
2.	Question: The lengths (in kilometers) of rivers on the South Island of New Zealand that flow to the Tasman Sea are listed below. Find the variance. See Attached Excel for Data. Use the Excel function to fin...
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