MATH302 (MATH302)
American Public University
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MATH302 Week 2 Test
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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MATH302 Week 5 Knowledge Check Homework Practice Questions
Popular1. Question: Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was estimated that the current proportion of customers who click on ads on their smartphones is 0.68. How many customers should the company survey in order to be 97% confident that the margin of error is 0.29 for the confidence interval of true proportion of customers who click on ads on their smartphones? 2. Question: There is no prior information about the ...
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MATH302 Week 8 Test 20 Questions and Answers APU
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...
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MATH302 Week 8 Test 8 Critique APU
MATH302 Week 8 Test 8 Critique APU
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MATH302 Week 8 Knowledge Check Homework Practice 20 Questions APU
1. Question: A company manager believes that a person's ability to be a leader is directly correlated to their zodiac sign. He never selects someone to chair a committee without first evaluating their zodiac sign. An irate employee sets out to prove her manager wrong. She claims that if zodiac sign truly makes a difference in leadership, then a random sample of 210 CEO's in our country would reveal a difference in zodiac sign distribution. She finds the following zodiac signs for her random sa...
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Math302 Week 8 Final Project APU
Math302 Week 8 Final Project APU
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MATH302 Week 8 Discussion How Will You Use Statistics APU
1. Which resources did you like best? Why? 2. How will you use the information in the future? This is your opportunity to consider and then share how you will employ the knowledge that you have gained during our course. 3. Were the discussions useful? Will they be useful for you in real life? Why or why not? 4. Where are you going from here? What course(s) do you plan to take next? 1. Feel free to share something interesting about yourself and/or how it relates to the course.
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MATH302 Week 7 Discussion Regression and Correlation APU
MATH302 Week 7 Discussion Regression and Correlation
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MATH302 Week 7 Knowledge Check Homework Practice Questions APU
Question 1 1 / 1 point 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?
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MATH302 Week 7 Test 7 Critique
MATH302 Week 7 Test 7 Critique
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MATH302 Week 7 Test 20 Questions and Answers APU
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...
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MATH302 Week 6 Discussion Hypothesis testing I and II Testing differences between means variances and proportions APU
A town official claims that the average vehicle in their area sells for more than the 40th percentile of your data set. Using the data, you obtained in week 1, as well as the summary statistics you found for the original data set (excluding the super car outlier), run a hypothesis test to determine if the claim can be supported. Make sure you state all the important values, so your fellow classmates can use them to run a hypothesis test as well.
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MATH302 Week 6 Discussion Table APU
MATH302 Week 6 Discussion Table
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MATH302 Week 6 Knowledge Check Homework Practice Questions
1. Question: An adviser is testing out a new online learning module for a placement test. They wish to test the claim that on average the new online learning module increased placement scores at a significance level of α = 0.05. For the context of this problem, μD=μnew–μold where the first data set represents the new test scores and the second data set represents old test scores. Assume the population is normally distributed. 2. Question: A researcher is testing reaction times between the...
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MATH302 Week 6 Test 6 Critique APU
MATH302 Week 6 Test 6 Critique APU
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MATH302 Week 6 Test 20 Q's and A's APU
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...
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MKTG201 All Week Exams ( Package Deal )
MKTG201 All Week Exams ( Package Deal )
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NR 546 All Knowledge Checks Week 1 - 8 (Package Deal)
NR 546 All Knowledge Checks Week 1 - 8 (Package Deal)
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NR 546 All Discussions Week 1 - 8 (Package Deal)
NR 546 All Discussions Week 1 - 8 (Package Deal)
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MATH302 Week 2 Discussion Frequency distributions and graphs Data description APU
MATH302 Week 2 Discussion Frequency distributions and graphs Data description APU
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MATH302 Week 8 Test
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...
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MATH302 Week 8 Test 8 Critique
MATH302 Week 8 Test 8 Critique
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