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Questions Hw 1
1:Your CEO has heard that a one of the advantages of a BigData database platform is that it can handle a lot of work very ...
Questions Hw 1
1:Your CEO has heard that a one of the advantages of a BigData database platform is that it can handle a lot of work very quickly due to the feature ...
How much energy is absorbed when 30.3 g of liquid water boils, algebra homework help
1. Water Apply Vaporization. Make sure that you are showing each step of your work. 1. How much ener ...
How much energy is absorbed when 30.3 g of liquid water boils, algebra homework help
1. Water Apply Vaporization. Make sure that you are showing each step of your work. 1. How much energy is absorbed when 30.3 g of liquid water boils? 2. An energy unit often encountered is the calorie (4.18 J = 1 calorie). Determine the molar enthalpy of fusion of ice in calories per gram. 3. A typical ice cube has a volume of about 16.0 mL. Calculate the amount of energy needed to melt the ice cube. (Density of ice at 0.°C 0.917 g/mL; molar enthalpy of fusion of ice 6.009 kJ/mol;molar mass of H2O 18.02 g/mol.) Determine the mass of the ice cube.Determine the number of moles of H2O present in the sample.Determine the number of kilojoules of energy needed to melt the ice cube. "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 2. Gases and Pressure Apply In this unit, you learned about pressure, units of pressure, and Dalton's law of partial pressures. Now, you will demonstrate your understanding of these concepts by responding to the following prompts. In part of your unit project, you will explain how to use Dalton’s law, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. Show the process and find the solution Convert a pressure of 3.25 atm to kPa and to mm Hg.Some hydrogen gas is collected over water at 20.0°C. The levels of water inside and outside the gas-collection bottle are the same. The partial pressure of hydrogen is 742.5 torr. What is the barometric pressure at the time the gas is collected? "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 3. The Gas Laws Apply In this unit, you learned about Boyle's law, Charles's law, and Gay-Lussac's law. Now, you will demonstrate your understanding of these concepts by creating a PowerPoint presentation which addresses the following prompts. You may use multiple slides for each question if needed. In part of your unit project, you will explain how to use Boyle's law, Charles's law, and Gay-Lussac's law, so this activity is important to prepare you for your project. Make sure you explain each step as if you were teaching it to one of your classmates. Boyle's Law: A balloon filled with helium gas has a volume of 500 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. If the temperature has remained the same, what volume does the gas occupy at this height?Charles's law: A sample of neon gas has a volume of 752 mL at 25.0°C. What will be the volume at 100.0°C if pressure is constant?Gay-Lussac's Law: At 122°C the pressure of a sample of nitrogen gas is 1.07 atm. What will the pressure be at 205°C, assuming constant volume? * YOU MUST COMPLETE THE POWERPOINT PRESENTATION OR THE ASSIGNMENT WILL BE REJECTED * "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 4. Gas Volumes and the Ideal Gas Law Apply In this unit, you learned about Avogadro's law and the ideal gas law. Now, you will demonstrate your understanding of these concepts by responding to the following prompts. In part of your unit project, you will explain how to use Avogadro's law and the ideal gas law, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. Avogadro's Law: At STP, what is the volume of 7.08 mol of nitrogen gas?Ideal Gas Law: A gas sample occupies 8.77 L at 20°C. What is the pressure, in atmospheres, given that there are 1.45 mol of gas in the sample? "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 5. Diffusion and Effusion Apply In this unit, you learned about Graham's law of effusion. Now, you will demonstrate your understanding of these concepts by responding to the following prompt. In part of your unit project, you will explain how to use Graham's law of effusion, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. If a molecule of neon gas travels at an average of 400 m/s at a given temperature, estimate the average speed of a molecule of butane gas, C4H10, at the same temperature. "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET.
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox be
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox below.
Question 1 ...
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox be
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox below.
Question 1
The following shows the temperatures (high, low) and weather conditions in a given Sunday for some selected world cities. For the weather conditions, the following notations are used: c = clear; cl = cloudy; sh = showers; pc = partly cloudy.
1.How many elements are in this data set?
2.How many variables are in this data set?
3.How many observations are in this data set?
4.Name the variables and indicate whether they are categorical or quantitative.
Question 2
A student has completed 20 courses in the School of Arts and Sciences. Her grades in the 20 courses are shown below.
1.Develop a frequency distribution and a bar chart for her grades.
2.Develop a relative frequency distribution for her grades and construct a pie chart.
Question 3
The number of hours worked per week for a sample of ten students is shown below.
1.Determine the median and explain its meaning.
2.Compute the 70th percentile and explain its meaning.
3.What is the mode of the above data? What does it signify?
Question 4
You are given the following information on Events A, B, C, and D.
1.Compute P(D).
2.Compute P(A ∩ B).
3.Compute P(A | C).
4.Compute the probability of the complement of C.
5.Are A and B mutually exclusive? Explain your answer.
6.Are A and B independent? Explain your answer.
7.Are A and C mutually exclusive? Explain your answer.
8.Are A and C independent? Explain your answer.
Question 5
1.When a particular machine is functioning properly, 80% of the items produced are non-defective.
2.If three items are examined, what is the probability that one is defective?
3.Use the binomial probability function to answer this question.
Question 6
The average starting salary of this year’s graduates of a large university (LU) is $20,000 with a standard deviation of $8,000. Furthermore, it is known that the starting salaries are normally distributed.
1.What is the probability that a randomly selected LU graduate will have a starting salary of at least $30,400?
2.Individuals with starting salaries of less than $15,600 receive a low income tax break. What percentage of the graduates will receive the tax break?
3.What are the minimum and the maximum starting salaries of the middle 95.4% of the LU graduates?
Question 7
A simple random sample of 6 computer programmers in Houston, Texas revealed the sex of the programmers and the following information about their weekly incomes.
1.What is the point estimate for the average weekly income of all the computer programmers in Houston?
2.What is the point estimate for the standard deviation of the population?
3.Determine a point estimate for the proportion of all programmers in Houston who are female.
Question 8
Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken.
1.What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?
2.What is the probability that the sample mean will be at least $4?
3.What is the probability that the sample mean will be at least $5.90?
Grading Criteria Assignments Maximum Points
Meets or exceeds established assignment criteria 40
Demonstrates an understanding of lesson concepts 20
Clearly presents well-reasoned ideas and concepts 30
Uses proper mechanics, punctuation, sentence structure, and spelling 10
Total 100
5-1 Discussion: Z or T Confidence Intervals?
1. In describing confidence intervals on a mean, z and t intervals are frequently mentioned. How are z and t confidence in ...
5-1 Discussion: Z or T Confidence Intervals?
1. In describing confidence intervals on a mean, z and t intervals are frequently mentioned. How are z and t confidence intervals different? Choose one interval and give an example of how it could be applied within an operations or production environment that is different from those mentioned in the overview. Discuss and share this information with your classmates. 2. In responding to two of your peers, select responses that use a confidence interval in a scenario that is different from your own. Do you agree with the use of a z or t confidence interval in those examples? Explain your reasoning and consider how confidence intervals could be applied to the final project. Support your initial posts and response posts with scholarly sources cited in APA style.
Midterm Exam
Attached are 6 question please i need them answered ASAP. I am taking am currently taking a statistic exam and i really ne ...
Midterm Exam
Attached are 6 question please i need them answered ASAP. I am taking am currently taking a statistic exam and i really need help with it. Will really appreciate someone that is honest and know what they are actually doing. Thanks
PSY 380 Grand Canyon University Benchmark Project 2 Article Analysis
Use the attached document, "Project 2-Articles," and the following articles to complete this project:
"Effects of Cognitiv ...
PSY 380 Grand Canyon University Benchmark Project 2 Article Analysis
Use the attached document, "Project 2-Articles," and the following articles to complete this project:
"Effects of Cognitive Behavioral Group Program for Mental Health Promotion of University Students," by Lee & Lee, from International Journal of Environmental Research and Public Health (2020).
https://doi.org/10.3390/ijerph17103500
"The Stigma Scale: A Canadian Perspective," by Meier et al., from Social Work Research (2015).
https://lopes.idm.oclc.org/login?url=https://search.ebscohost.com/login.aspx?direct=true&db=ofs&AN=111007501&site=eds-live&scope=site&custid=s8333196&groupid=main&profile=eds1
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Most Popular Content
3 pages
Questions Hw 1
1:Your CEO has heard that a one of the advantages of a BigData database platform is that it can handle a lot of work very ...
Questions Hw 1
1:Your CEO has heard that a one of the advantages of a BigData database platform is that it can handle a lot of work very quickly due to the feature ...
How much energy is absorbed when 30.3 g of liquid water boils, algebra homework help
1. Water Apply Vaporization. Make sure that you are showing each step of your work. 1. How much ener ...
How much energy is absorbed when 30.3 g of liquid water boils, algebra homework help
1. Water Apply Vaporization. Make sure that you are showing each step of your work. 1. How much energy is absorbed when 30.3 g of liquid water boils? 2. An energy unit often encountered is the calorie (4.18 J = 1 calorie). Determine the molar enthalpy of fusion of ice in calories per gram. 3. A typical ice cube has a volume of about 16.0 mL. Calculate the amount of energy needed to melt the ice cube. (Density of ice at 0.°C 0.917 g/mL; molar enthalpy of fusion of ice 6.009 kJ/mol;molar mass of H2O 18.02 g/mol.) Determine the mass of the ice cube.Determine the number of moles of H2O present in the sample.Determine the number of kilojoules of energy needed to melt the ice cube. "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 2. Gases and Pressure Apply In this unit, you learned about pressure, units of pressure, and Dalton's law of partial pressures. Now, you will demonstrate your understanding of these concepts by responding to the following prompts. In part of your unit project, you will explain how to use Dalton’s law, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. Show the process and find the solution Convert a pressure of 3.25 atm to kPa and to mm Hg.Some hydrogen gas is collected over water at 20.0°C. The levels of water inside and outside the gas-collection bottle are the same. The partial pressure of hydrogen is 742.5 torr. What is the barometric pressure at the time the gas is collected? "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 3. The Gas Laws Apply In this unit, you learned about Boyle's law, Charles's law, and Gay-Lussac's law. Now, you will demonstrate your understanding of these concepts by creating a PowerPoint presentation which addresses the following prompts. You may use multiple slides for each question if needed. In part of your unit project, you will explain how to use Boyle's law, Charles's law, and Gay-Lussac's law, so this activity is important to prepare you for your project. Make sure you explain each step as if you were teaching it to one of your classmates. Boyle's Law: A balloon filled with helium gas has a volume of 500 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. If the temperature has remained the same, what volume does the gas occupy at this height?Charles's law: A sample of neon gas has a volume of 752 mL at 25.0°C. What will be the volume at 100.0°C if pressure is constant?Gay-Lussac's Law: At 122°C the pressure of a sample of nitrogen gas is 1.07 atm. What will the pressure be at 205°C, assuming constant volume? * YOU MUST COMPLETE THE POWERPOINT PRESENTATION OR THE ASSIGNMENT WILL BE REJECTED * "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 4. Gas Volumes and the Ideal Gas Law Apply In this unit, you learned about Avogadro's law and the ideal gas law. Now, you will demonstrate your understanding of these concepts by responding to the following prompts. In part of your unit project, you will explain how to use Avogadro's law and the ideal gas law, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. Avogadro's Law: At STP, what is the volume of 7.08 mol of nitrogen gas?Ideal Gas Law: A gas sample occupies 8.77 L at 20°C. What is the pressure, in atmospheres, given that there are 1.45 mol of gas in the sample? "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET. 5. Diffusion and Effusion Apply In this unit, you learned about Graham's law of effusion. Now, you will demonstrate your understanding of these concepts by responding to the following prompt. In part of your unit project, you will explain how to use Graham's law of effusion, so this activity is important to prepare you for your project. Make sure you are showing each step of your work. If a molecule of neon gas travels at an average of 400 m/s at a given temperature, estimate the average speed of a molecule of butane gas, C4H10, at the same temperature. "Make sure to show your work, and your answers should be provided with the correct amount of significant figures." YOU WILL RECEIVE A SCORE REDUCTION IF THE ABOVE REQUIREMENTS ARE NOT MET.
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox be
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox below.
Question 1 ...
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox be
There are 8 questions in total, each worth 12.5 points. Please upload your answers to the dropbox below.
Question 1
The following shows the temperatures (high, low) and weather conditions in a given Sunday for some selected world cities. For the weather conditions, the following notations are used: c = clear; cl = cloudy; sh = showers; pc = partly cloudy.
1.How many elements are in this data set?
2.How many variables are in this data set?
3.How many observations are in this data set?
4.Name the variables and indicate whether they are categorical or quantitative.
Question 2
A student has completed 20 courses in the School of Arts and Sciences. Her grades in the 20 courses are shown below.
1.Develop a frequency distribution and a bar chart for her grades.
2.Develop a relative frequency distribution for her grades and construct a pie chart.
Question 3
The number of hours worked per week for a sample of ten students is shown below.
1.Determine the median and explain its meaning.
2.Compute the 70th percentile and explain its meaning.
3.What is the mode of the above data? What does it signify?
Question 4
You are given the following information on Events A, B, C, and D.
1.Compute P(D).
2.Compute P(A ∩ B).
3.Compute P(A | C).
4.Compute the probability of the complement of C.
5.Are A and B mutually exclusive? Explain your answer.
6.Are A and B independent? Explain your answer.
7.Are A and C mutually exclusive? Explain your answer.
8.Are A and C independent? Explain your answer.
Question 5
1.When a particular machine is functioning properly, 80% of the items produced are non-defective.
2.If three items are examined, what is the probability that one is defective?
3.Use the binomial probability function to answer this question.
Question 6
The average starting salary of this year’s graduates of a large university (LU) is $20,000 with a standard deviation of $8,000. Furthermore, it is known that the starting salaries are normally distributed.
1.What is the probability that a randomly selected LU graduate will have a starting salary of at least $30,400?
2.Individuals with starting salaries of less than $15,600 receive a low income tax break. What percentage of the graduates will receive the tax break?
3.What are the minimum and the maximum starting salaries of the middle 95.4% of the LU graduates?
Question 7
A simple random sample of 6 computer programmers in Houston, Texas revealed the sex of the programmers and the following information about their weekly incomes.
1.What is the point estimate for the average weekly income of all the computer programmers in Houston?
2.What is the point estimate for the standard deviation of the population?
3.Determine a point estimate for the proportion of all programmers in Houston who are female.
Question 8
Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken.
1.What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?
2.What is the probability that the sample mean will be at least $4?
3.What is the probability that the sample mean will be at least $5.90?
Grading Criteria Assignments Maximum Points
Meets or exceeds established assignment criteria 40
Demonstrates an understanding of lesson concepts 20
Clearly presents well-reasoned ideas and concepts 30
Uses proper mechanics, punctuation, sentence structure, and spelling 10
Total 100
5-1 Discussion: Z or T Confidence Intervals?
1. In describing confidence intervals on a mean, z and t intervals are frequently mentioned. How are z and t confidence in ...
5-1 Discussion: Z or T Confidence Intervals?
1. In describing confidence intervals on a mean, z and t intervals are frequently mentioned. How are z and t confidence intervals different? Choose one interval and give an example of how it could be applied within an operations or production environment that is different from those mentioned in the overview. Discuss and share this information with your classmates. 2. In responding to two of your peers, select responses that use a confidence interval in a scenario that is different from your own. Do you agree with the use of a z or t confidence interval in those examples? Explain your reasoning and consider how confidence intervals could be applied to the final project. Support your initial posts and response posts with scholarly sources cited in APA style.
Midterm Exam
Attached are 6 question please i need them answered ASAP. I am taking am currently taking a statistic exam and i really ne ...
Midterm Exam
Attached are 6 question please i need them answered ASAP. I am taking am currently taking a statistic exam and i really need help with it. Will really appreciate someone that is honest and know what they are actually doing. Thanks
PSY 380 Grand Canyon University Benchmark Project 2 Article Analysis
Use the attached document, "Project 2-Articles," and the following articles to complete this project:
"Effects of Cognitiv ...
PSY 380 Grand Canyon University Benchmark Project 2 Article Analysis
Use the attached document, "Project 2-Articles," and the following articles to complete this project:
"Effects of Cognitive Behavioral Group Program for Mental Health Promotion of University Students," by Lee & Lee, from International Journal of Environmental Research and Public Health (2020).
https://doi.org/10.3390/ijerph17103500
"The Stigma Scale: A Canadian Perspective," by Meier et al., from Social Work Research (2015).
https://lopes.idm.oclc.org/login?url=https://search.ebscohost.com/login.aspx?direct=true&db=ofs&AN=111007501&site=eds-live&scope=site&custid=s8333196&groupid=main&profile=eds1
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