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MATH302 Week 6 Discussion Table APU
MATH302 Week 6 Discussion Table
- Other
- • 2 pages •
MATH302 Week 6 Discussion Table
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...
- Exam (elaborations)
- • 16 pages •
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...
MATH302 Week 6 Test 6 Critique APU
MATH302 Week 6 Test 6 Critique APU
- Other
- • 1 pages •
MATH302 Week 6 Test 6 Critique APU
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...
- Exam (elaborations)
- • 24 pages •
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 5 Discussion Confidence Intervals and Sample Size APU
Using the data set you collected in Week 1, excluding the super car outlier, you should have calculated the mean and standard deviation during Week 2 for price data. Along with finding a p and q from Week 3. Using this information, calculate two 95% confidence intervals. For the first interval you need to calculate a T-confidence interval for the sample population. You have the mean, standard deviation and the sample size, all you have left to find is the T-critical value and you can calculate ...
- Other
- • 2 pages •
Using the data set you collected in Week 1, excluding the super car outlier, you should have calculated the mean and standard deviation during Week 2 for price data. Along with finding a p and q from Week 3. Using this information, calculate two 95% confidence intervals. For the first interval you need to calculate a T-confidence interval for the sample population. You have the mean, standard deviation and the sample size, all you have left to find is the T-critical value and you can calculate ...
MATH302 Week 5 Knowledge Check Homework Practice Questions APU
1. 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 ...
- Exam (elaborations)
- • 20 pages •
1. 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 ...
MATH302 Week 5 Test 5 Critique APU
Math302 Week 5 Test Critique Test 5 was challenging and really tested our knowledge of this week’s lessons. I took the test twice and was able to do better on my second attempt. In reviewing the test to see where I missed the 100% mark, I see that my response to question #18 was incorrect, in looking at this multiple times, I do not recognize an error. The grading feedback is not helpful as I correctly answered the question:
- Other
- • 2 pages •
Math302 Week 5 Test Critique Test 5 was challenging and really tested our knowledge of this week’s lessons. I took the test twice and was able to do better on my second attempt. In reviewing the test to see where I missed the 100% mark, I see that my response to question #18 was incorrect, in looking at this multiple times, I do not recognize an error. The grading feedback is not helpful as I correctly answered the question:
MATH302 Week 5 Test APU 20 Q's and A's
1. Question: The population standard deviation for the height of college football players is 2.7 inches. If we want to estimate a 95% confidence interval for the population mean height of these players with a 0.65 margin of error, how many randomly selected players must be surveyed? 2. Question: The population standard deviation for the height of college basketball players is 2.9 inches. If we want to estimate a 99% confidence interval for the population mean height of these players with a 0.45...
- Exam (elaborations)
- • 15 pages •
1. Question: The population standard deviation for the height of college football players is 2.7 inches. If we want to estimate a 95% confidence interval for the population mean height of these players with a 0.65 margin of error, how many randomly selected players must be surveyed? 2. Question: The population standard deviation for the height of college basketball players is 2.9 inches. If we want to estimate a 99% confidence interval for the population mean height of these players with a 0.45...
MATH302 Week 4 Test - 20 Questions and Answers APU
1. Question: 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. 2. Question: The size of fish is very important to commercial fishing. A study conducted in 2012 found the length of Atlantic cod caught in nets in Karlskrona to have a mean of 47.8 cm and a s...
- Exam (elaborations)
- • 17 pages •
1. Question: 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. 2. Question: The size of fish is very important to commercial fishing. A study conducted in 2012 found the length of Atlantic cod caught in nets in Karlskrona to have a mean of 47.8 cm and a s...
MATH302 Week 4 Test 4 Critique
MATH302 Week 4 Test 4 Critique
- Other
- • 1 pages •
MATH302 Week 4 Test 4 Critique
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