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7
5.
4.
EL
F
2-
-5 4 3 2
-1
0
1
2
9
4
5
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4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard ...
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard deviation is 0.1 cm. Suppose a sample of 80 tires were obtained, and the mean tread was 2.2 cm. Construct a 99% confidence interval. The company's operations manager knows that flat tires occur more often when the tread is below 1.0 cm. At what sample mean (and higher) should the company reasonably expect minimal flat tires, based on a 95% confidence interval?2. Monthly expenses for an advertising agency were obtained for the previous year. The sample of 12 expenses showed a mean of $196,000, with a standard deviation of $45,000. The office manager is budgeting for monthly expenses, and would like to know if it is reasonable to expect expenses to be below $250,000. Construct a 95% confidence interval to justify if $250,000 is reasonable.3. An online business consulting firm provides its service on a hourly basis. In the previous 15 months, the business had the following number of hours billed for its services.( Hours billed: 212 389 457 505 740 678 987 573 761 812 933 691 558 575 872)a. What is the point estimate of the population mean? b. Construct a 90% confidence interval.4. As the operator of an e-commerce web site, you are interested in monitoring the average time spent on the site. How large of a sample of usage times should be obtained, provided your allowable error is 30 seconds. Based on a long history, you know the standard deviation of usage times is 5 minutes. Assume a 90% level of confidence.
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?
AD 632 TU Financial Concepts Non CONNECT Financial Calculator Exercises
AD 632 Financial ConceptsNon-CONNECT HomeworkFinancial Calculator1)Abby wants to purchase a new car that will cost $24,000 ...
AD 632 TU Financial Concepts Non CONNECT Financial Calculator Exercises
AD 632 Financial ConceptsNon-CONNECT HomeworkFinancial Calculator1)Abby wants to purchase a new car that will cost $24,000. She will make a down payment of $2,500 and will borrow the rest. The annual interest rate on the loan is 4.65%. The monthly principle and interest payments will be $350.00. How many monthly payments will Abby have to make to pay off the car loan?Which model financial calculator are you using___________________________NiPVPMTFV2)Judy needs to purchase some new appliances for her new condo. The appliances will cost $1,640. The store is offering a special for the financing of the appliances. The terms are 24 months with a minimum monthly payment of $90. What annual interest rate is Judy being charged?NiPVPMTFV3)Steven wants to save for a family vacation in 3 years. The cost of the vacation will be $16,500. He plans to invest in a mutual fund that will earn 7.2% annually. To reach his goal, how much does Steven need to invest today?NiPVPMTFV4)Meredith wants to begin a retirement savings account. She plans on retiring in 42 years and wants to accumulate $2,200,000 by the time she retires. If she is just beginning her savings and can earn 9.2% on her investments, how much will she need to save each month?NiPVPMTFV5)Wil just learned that 72 years ago his aunt left him $7,500 in an investment which paid 4.8% annual interest. What is the value of that investment today?NiPVPMTFV6)Aubrey has an opportunity to invest $10,000 in a Certificate of Deposit (CD) that will pay her 2.78% annually. When the CD matures in 6 years, how much will Aubrey receive? Note: CD’s only pay interest at the end of the period.NiPVPMTFV7)Assume the same facts as in 6) above, except the interest will be compounded semi-annually. When the CD matures in 6 years, how much will Aubrey receive?NiPVPMTFV8)Assume the same facts as in 6) above, except the interest will be compounded monthly. When the CD matures in 6 years, how much will Aubrey receive?NiPVPMTFV9)Evan purchased a house and obtained a $380,000 fully amortized level payment 15-year mortgage. The mortgage’s annual interest rate is 4.82%. What will be Evan’s monthly blended principal and interest payment?NiPVPMTFV10) Using the information from 9) above, determine how much of the total payment is principal? And how much of the total payment is interest? Prepare the amortization table for months 1, 2, and 3BeginningAmortizationEndingMonthPrincipalPaymentInterestof PrinciplePrinciple123
Springdale Shoppers Telephone Survey to Identify Strengths and Weaknesses Worksheet
Option #1: Springdale Shopping SurveyThe major shopping areas in the community of Springdale include Springdale Mall, West ...
Springdale Shoppers Telephone Survey to Identify Strengths and Weaknesses Worksheet
Option #1: Springdale Shopping SurveyThe major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown area on Main Street. A telephone survey has been conducted to identify strengths and weaknesses of these areas and to find out how they fit into the shopping activities of local residents. The 150 respondents were also asked to provide information about themselves and their shopping habits. The data are provided in the file SHOPPING. The variables in the survey can be found in the file CODING.We will concentrate on variables 18-25, which reflect how important each of eight different attributes is in the respondent's selection of a shopping area. Each of these variables has been measured on a scale of 1 (the attribute is not very important in choosing a shopping area) to 7 (the attribute is very important in choosing a shopping area). The attributes being rated for importance are listed below. Examining the relative importance customers place on these attributes can help a manager "fine-tune" his or her shopping area to make it a more attractive place to shop.18 Easy to return/exchange goods19 High quality of goods20 Low prices21 Good variety of sizes/styles22 Sales staff helpful/friendly23 Convenient shopping hours24 Clean stores and surroundings25 A lot of bargain salesPerform the following operations for variables 18-25:Compute descriptive statistics for each variable along with an explanation of what the descriptive statistics tell us about the variable. This will include the mean, mode, range, standard deviation, and the five-number summary (minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum). Be sure to show each calculation in your spreadsheet.Are there any data points for any of the variables that can be considered outliers? If there are any outliers in any variable, list them and state for which variable they are an outlier. Use the z-score method to determine any outliers for this question. Be sure to show each z-score calculation in your spreadsheet for each variable.Based on the results for question 1, which attributes seem to be the most important and the least important in respondents' choice of a shopping area? Which items from #1 did you use to decide on the least and most important attributes, and why?Determine the correlation coefficient between variable 19 and variables 21-25. Provide an explanation of these relationships. Show your calculations for each correlation coefficient within the spreadsheet.Requirements:Your paper should be 2-3 pages in length (not counting the title page and references page) and cite and integrate at least one credible outside source. The CSU Global Library is a great place to find resources. Your textbook is a credible resource.Include a title page, introduction, body, conclusion, and a reference page.The introduction should describe or summarize the topic or problem. It might discuss the general applications of the topic or it might introduce the unique terminology associated with the topic.The body of your paper should address the questions posed in the problem. Explain how you approached and answered the question or solved the problem, and, for each question, show all steps involved. Be sure this is in paragraph format, not numbered answers like a homework assignment.The conclusion should summarize your thoughts about what you have determined from your analysis in completing the assignment. Nothing new should be introduced in the conclusion that was not previously discussed in the body paragraphs.Include any tables of data or calculations, calculated values, and/or graphs referenced in the paper. (Note: The minimum required length excludes any tables or graphs.)Document formatting, citations, and style should conform to the CSU Global Writing Center (Links to an external site.). A short summary containing much that you need to know about paper formatting, citations, and references is contained in the Template Paper (Links to an external site.). In addition, information in the CSU Global Writing Center (Links to an external site.) has many helpful areas (Writing Tips, Template Examples/Papers Essays, Figures and Tables, and others).NOTE: You MUST submit your Excel file with your report. This will allow you to qualify for consideration for partial credit if any errors are found in your report.
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Poison Distribution
The poison distribution describes a discrete probability distribution derived from a This discussion will be exploring the likelihoods of ...
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Most Popular Content
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard ...
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard deviation is 0.1 cm. Suppose a sample of 80 tires were obtained, and the mean tread was 2.2 cm. Construct a 99% confidence interval. The company's operations manager knows that flat tires occur more often when the tread is below 1.0 cm. At what sample mean (and higher) should the company reasonably expect minimal flat tires, based on a 95% confidence interval?2. Monthly expenses for an advertising agency were obtained for the previous year. The sample of 12 expenses showed a mean of $196,000, with a standard deviation of $45,000. The office manager is budgeting for monthly expenses, and would like to know if it is reasonable to expect expenses to be below $250,000. Construct a 95% confidence interval to justify if $250,000 is reasonable.3. An online business consulting firm provides its service on a hourly basis. In the previous 15 months, the business had the following number of hours billed for its services.( Hours billed: 212 389 457 505 740 678 987 573 761 812 933 691 558 575 872)a. What is the point estimate of the population mean? b. Construct a 90% confidence interval.4. As the operator of an e-commerce web site, you are interested in monitoring the average time spent on the site. How large of a sample of usage times should be obtained, provided your allowable error is 30 seconds. Based on a long history, you know the standard deviation of usage times is 5 minutes. Assume a 90% level of confidence.
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?
AD 632 TU Financial Concepts Non CONNECT Financial Calculator Exercises
AD 632 Financial ConceptsNon-CONNECT HomeworkFinancial Calculator1)Abby wants to purchase a new car that will cost $24,000 ...
AD 632 TU Financial Concepts Non CONNECT Financial Calculator Exercises
AD 632 Financial ConceptsNon-CONNECT HomeworkFinancial Calculator1)Abby wants to purchase a new car that will cost $24,000. She will make a down payment of $2,500 and will borrow the rest. The annual interest rate on the loan is 4.65%. The monthly principle and interest payments will be $350.00. How many monthly payments will Abby have to make to pay off the car loan?Which model financial calculator are you using___________________________NiPVPMTFV2)Judy needs to purchase some new appliances for her new condo. The appliances will cost $1,640. The store is offering a special for the financing of the appliances. The terms are 24 months with a minimum monthly payment of $90. What annual interest rate is Judy being charged?NiPVPMTFV3)Steven wants to save for a family vacation in 3 years. The cost of the vacation will be $16,500. He plans to invest in a mutual fund that will earn 7.2% annually. To reach his goal, how much does Steven need to invest today?NiPVPMTFV4)Meredith wants to begin a retirement savings account. She plans on retiring in 42 years and wants to accumulate $2,200,000 by the time she retires. If she is just beginning her savings and can earn 9.2% on her investments, how much will she need to save each month?NiPVPMTFV5)Wil just learned that 72 years ago his aunt left him $7,500 in an investment which paid 4.8% annual interest. What is the value of that investment today?NiPVPMTFV6)Aubrey has an opportunity to invest $10,000 in a Certificate of Deposit (CD) that will pay her 2.78% annually. When the CD matures in 6 years, how much will Aubrey receive? Note: CD’s only pay interest at the end of the period.NiPVPMTFV7)Assume the same facts as in 6) above, except the interest will be compounded semi-annually. When the CD matures in 6 years, how much will Aubrey receive?NiPVPMTFV8)Assume the same facts as in 6) above, except the interest will be compounded monthly. When the CD matures in 6 years, how much will Aubrey receive?NiPVPMTFV9)Evan purchased a house and obtained a $380,000 fully amortized level payment 15-year mortgage. The mortgage’s annual interest rate is 4.82%. What will be Evan’s monthly blended principal and interest payment?NiPVPMTFV10) Using the information from 9) above, determine how much of the total payment is principal? And how much of the total payment is interest? Prepare the amortization table for months 1, 2, and 3BeginningAmortizationEndingMonthPrincipalPaymentInterestof PrinciplePrinciple123
Springdale Shoppers Telephone Survey to Identify Strengths and Weaknesses Worksheet
Option #1: Springdale Shopping SurveyThe major shopping areas in the community of Springdale include Springdale Mall, West ...
Springdale Shoppers Telephone Survey to Identify Strengths and Weaknesses Worksheet
Option #1: Springdale Shopping SurveyThe major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown area on Main Street. A telephone survey has been conducted to identify strengths and weaknesses of these areas and to find out how they fit into the shopping activities of local residents. The 150 respondents were also asked to provide information about themselves and their shopping habits. The data are provided in the file SHOPPING. The variables in the survey can be found in the file CODING.We will concentrate on variables 18-25, which reflect how important each of eight different attributes is in the respondent's selection of a shopping area. Each of these variables has been measured on a scale of 1 (the attribute is not very important in choosing a shopping area) to 7 (the attribute is very important in choosing a shopping area). The attributes being rated for importance are listed below. Examining the relative importance customers place on these attributes can help a manager "fine-tune" his or her shopping area to make it a more attractive place to shop.18 Easy to return/exchange goods19 High quality of goods20 Low prices21 Good variety of sizes/styles22 Sales staff helpful/friendly23 Convenient shopping hours24 Clean stores and surroundings25 A lot of bargain salesPerform the following operations for variables 18-25:Compute descriptive statistics for each variable along with an explanation of what the descriptive statistics tell us about the variable. This will include the mean, mode, range, standard deviation, and the five-number summary (minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum). Be sure to show each calculation in your spreadsheet.Are there any data points for any of the variables that can be considered outliers? If there are any outliers in any variable, list them and state for which variable they are an outlier. Use the z-score method to determine any outliers for this question. Be sure to show each z-score calculation in your spreadsheet for each variable.Based on the results for question 1, which attributes seem to be the most important and the least important in respondents' choice of a shopping area? Which items from #1 did you use to decide on the least and most important attributes, and why?Determine the correlation coefficient between variable 19 and variables 21-25. Provide an explanation of these relationships. Show your calculations for each correlation coefficient within the spreadsheet.Requirements:Your paper should be 2-3 pages in length (not counting the title page and references page) and cite and integrate at least one credible outside source. The CSU Global Library is a great place to find resources. Your textbook is a credible resource.Include a title page, introduction, body, conclusion, and a reference page.The introduction should describe or summarize the topic or problem. It might discuss the general applications of the topic or it might introduce the unique terminology associated with the topic.The body of your paper should address the questions posed in the problem. Explain how you approached and answered the question or solved the problem, and, for each question, show all steps involved. Be sure this is in paragraph format, not numbered answers like a homework assignment.The conclusion should summarize your thoughts about what you have determined from your analysis in completing the assignment. Nothing new should be introduced in the conclusion that was not previously discussed in the body paragraphs.Include any tables of data or calculations, calculated values, and/or graphs referenced in the paper. (Note: The minimum required length excludes any tables or graphs.)Document formatting, citations, and style should conform to the CSU Global Writing Center (Links to an external site.). A short summary containing much that you need to know about paper formatting, citations, and references is contained in the Template Paper (Links to an external site.). In addition, information in the CSU Global Writing Center (Links to an external site.) has many helpful areas (Writing Tips, Template Examples/Papers Essays, Figures and Tables, and others).NOTE: You MUST submit your Excel file with your report. This will allow you to qualify for consideration for partial credit if any errors are found in your report.
5 pages
Poison Distribution
The poison distribution describes a discrete probability distribution derived from a This discussion will be exploring the ...
Poison Distribution
The poison distribution describes a discrete probability distribution derived from a This discussion will be exploring the likelihoods of ...
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