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3 R 4 but 4 is nor R to 3
Equivalence relation must be reciprocal
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STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
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Unit 8 Discussion
1. “High School Completion and Crime Rate 2014” dataset was chosen. I think there is a negative correlation between the two variables. The higher ...
8 pages
20200206193859week 5 Data
Question A: In the following question analyze the data. Assume that we have followed two clinicians, Smith and Jones, an
20200206193859week 5 Data
Question A: In the following question analyze the data. Assume that we have followed two clinicians, Smith and Jones, an
Stat 2002 Walden University Confidence Intervals in Political Polls Discussion
PROMPT:One of the most common uses of confidence intervals is found in political polls and the news articles that referenc ...
Stat 2002 Walden University Confidence Intervals in Political Polls Discussion
PROMPT:One of the most common uses of confidence intervals is found in political polls and the news articles that reference them. These articles often use the point estimate (the proportion), and you can usually find the margin of error (half of the confidence interval) somewhere in the article as well. For example, consider the following scenario:Two separate polling organizations have conducted polls for two candidates who are running for state senate, Gail Schultz and Raymond McGregor. The polls were taken from the same population, in the same state, and on the same day. The survey from the first company, Pollster Analytics, shows Gail having 49% of the potential vote. It also shows Raymond having an estimated 47% of likely voters. Both results reflect a margin of error of 2 percentage points (usually depicted as ±2%).The survey from the second company, Polltastik, shows Raymond at 49% and Gail at 46%. This survey has a 3-percentage-point margin of error (±3%).In this Discussion, you will compare the outcomes of the surveys in the scenario and apply the concept of confidence intervals to make a prediction for the upcoming election, as well as discuss their implications. Assignment (Refer to the scenario described above and consider who is ahead in the race and why)Post a 75- to 150-word (1- to 2-paragraph) explanation of how you applied confidence intervals to make predictions about the outcome of a political campaign. In your explanation, address the following:After reviewing both polls, what is now known about who might be ahead in the race? Explain who is ahead and why.Explain what the implications of these polls are for the campaign managers for Gail and Raymond.To support your response, be sure to reference at least one properly cited scholarly source.
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Most Popular Content
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
2 pages
Unit 8 Discussion
1. “High School Completion and Crime Rate 2014” dataset was chosen. I think there is a negative correlation between th ...
Unit 8 Discussion
1. “High School Completion and Crime Rate 2014” dataset was chosen. I think there is a negative correlation between the two variables. The higher ...
8 pages
20200206193859week 5 Data
Question A: In the following question analyze the data. Assume that we have followed two clinicians, Smith and Jones, an
20200206193859week 5 Data
Question A: In the following question analyze the data. Assume that we have followed two clinicians, Smith and Jones, an
Stat 2002 Walden University Confidence Intervals in Political Polls Discussion
PROMPT:One of the most common uses of confidence intervals is found in political polls and the news articles that referenc ...
Stat 2002 Walden University Confidence Intervals in Political Polls Discussion
PROMPT:One of the most common uses of confidence intervals is found in political polls and the news articles that reference them. These articles often use the point estimate (the proportion), and you can usually find the margin of error (half of the confidence interval) somewhere in the article as well. For example, consider the following scenario:Two separate polling organizations have conducted polls for two candidates who are running for state senate, Gail Schultz and Raymond McGregor. The polls were taken from the same population, in the same state, and on the same day. The survey from the first company, Pollster Analytics, shows Gail having 49% of the potential vote. It also shows Raymond having an estimated 47% of likely voters. Both results reflect a margin of error of 2 percentage points (usually depicted as ±2%).The survey from the second company, Polltastik, shows Raymond at 49% and Gail at 46%. This survey has a 3-percentage-point margin of error (±3%).In this Discussion, you will compare the outcomes of the surveys in the scenario and apply the concept of confidence intervals to make a prediction for the upcoming election, as well as discuss their implications. Assignment (Refer to the scenario described above and consider who is ahead in the race and why)Post a 75- to 150-word (1- to 2-paragraph) explanation of how you applied confidence intervals to make predictions about the outcome of a political campaign. In your explanation, address the following:After reviewing both polls, what is now known about who might be ahead in the race? Explain who is ahead and why.Explain what the implications of these polls are for the campaign managers for Gail and Raymond.To support your response, be sure to reference at least one properly cited scholarly source.
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