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MATH 114 Liberty University Standard Deviation Project Excel Sheet
Project 1 Instructions Please also pay close attention to any additional specifications provided by your professor. Prof ...
MATH 114 Liberty University Standard Deviation Project Excel Sheet
Project 1 Instructions Please also pay close attention to any additional specifications provided by your professor. Professors often will clarify their expectations regarding the format and presentation of your submission. The Range Rule of Thumb is based on the insight that the range is often approximately 4 times as large as the standard deviation. This insight enables you to quickly estimate the standard deviation of a data set by finding the maximum and minimum data values, using them to compute the range, and then dividing this value by 4. Each of the following 5 data sets has a mean close to 100, and a standard deviation in the 20s. Assume that each of these are sample data sets. For each of the 5 data sets given below, use the Excel function “=stdev.s” (or technology) to find the actual sample standard deviation (10 points), compute the estimate given by the Range Rule of Thumb (RROT) Estimate (10 points), and compute the percentage error of the estimate (10 points). The formula for the RROT estimate is RROT estimate = Range/4 (where the range = maximum value – minimum value), on the assumption that the Standard Deviation » RROT estimate. The formula used to find the percentage error of the estimate is: Summarize what you learned: % Error = | RROT Estimate – Standard deviation | / Standard Deviation × 100 = ____ % . Data Set 1: No outliersData Set 2: 1 outlierData Set 3: 2 outliersData Set 4: Normal (Bell-Shaped) DistributionData Set 5: Uniform Distribution (evenly-spaced values) 68 68 68 68 68 133 133 133 133 133 Actual Standard deviation = RROT Estimate = % Error = 68 81 81 81 81 82 82 82 82 160 Actual Standard deviation = RROT Estimate = % Error = 38 86 88 89 90 90 91 92 104 152 Actual Standard deviation = RROT Estimate = % Error = 51 67 74 81 87 93 99 106 115 128 Actual Standard deviation = RROT Estimate = % Error = 65 73 81 89 97 105 113 121 129 137 Actual Standard deviation = RROT Estimate = % Error = a) Does the Range Rule of Thumb estimate more often underestimate or overestimate the actual standard deviation? (3 points) b) What is the largest percentage error? (3 points) c) Each of the data sets given above is artificially contrived. If you were to apply the RROT estimate to a typical real-world data set, about how accurate would you expect it to be (your answer here should be a numerical estimate of the percentage error, based on your previous results)? (4 points)
Statistics Question
Based on n the data extracted a sample of 1289 workers, aged 18 to 65, and obtained the following information on each work ...
Statistics Question
Based on n the data extracted a sample of 1289 workers, aged 18 to 65, and obtained the following information on each worker: Wage = hourly wage in $ Age = age in years Female = 1 if female worker Nonwhite = 1 if a nonwhite worker Union = 1 if a union member Education = years of schooling Experience = potential labor market experience in years 17.The full data set can be found in the attached file:-a. Based on these data, estimate the following model, obtaining the usual regression statistics.In Wage i = B1+B2 Age +B3 Female + B4 Nonwhite + B5 Union + B6 Education + B7 Experience +ui Where InWage = (natural logarithm of wage)
10 pages
MATGAM02 Rasmussen Module 3 Expended Value Problem Solving Quiz
In a game of 5-card poker, what is the probability of getting a three of a kind (exactly 3 cards of one
MATGAM02 Rasmussen Module 3 Expended Value Problem Solving Quiz
In a game of 5-card poker, what is the probability of getting a three of a kind (exactly 3 cards of one
RES 845 Grand Canyon University Confidence Interval SPSS Worksheet
Review the SPSS output file, which reports the results of the between-group (independent group) one-way ANOVA to see if th ...
RES 845 Grand Canyon University Confidence Interval SPSS Worksheet
Review the SPSS output file, which reports the results of the between-group (independent group) one-way ANOVA to see if the mean alcohol by volume (%) of the beer differs as a function of quality of the brand as rated by a beer expert (in 2012). Answer the following questions based on your observations of the SPSS output file:Looking at the descriptives (first information), do you see differences in the mean alcohol contents for the three levels of quality? Explain.Looking at the Test for Homogeneity of Variances (Levene Statistic), is it reasonable to proceed with the ANOVA? Is the assumption met, or violated? How do you know?Looking at the results of the ANOVA, is there a significant difference in the mean alcohol content for beers in the three quality groups? How do you know? Write the results in the following format: F(df value) = ___, p value = ______.The pairwise post hoc tests indicate which quality groups' means are statistically significantly different for the others. Using the results of the Tukey HSD post hoc test, what two quality rating groups had significantly different mean alcohol by volume levels? How do you know?
9 pages
Hcs493 V1 Wk2 Basic Statistical Math Concepts..
Reference: Ch. 1 and Ch. 2 of Statistics and Data Analytics for Health Data Management Select an additional 3 terms from t ...
Hcs493 V1 Wk2 Basic Statistical Math Concepts..
Reference: Ch. 1 and Ch. 2 of Statistics and Data Analytics for Health Data Management Select an additional 3 terms from the list of statistical terms ...
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MATH 114 Liberty University Standard Deviation Project Excel Sheet
Project 1 Instructions Please also pay close attention to any additional specifications provided by your professor. Prof ...
MATH 114 Liberty University Standard Deviation Project Excel Sheet
Project 1 Instructions Please also pay close attention to any additional specifications provided by your professor. Professors often will clarify their expectations regarding the format and presentation of your submission. The Range Rule of Thumb is based on the insight that the range is often approximately 4 times as large as the standard deviation. This insight enables you to quickly estimate the standard deviation of a data set by finding the maximum and minimum data values, using them to compute the range, and then dividing this value by 4. Each of the following 5 data sets has a mean close to 100, and a standard deviation in the 20s. Assume that each of these are sample data sets. For each of the 5 data sets given below, use the Excel function “=stdev.s” (or technology) to find the actual sample standard deviation (10 points), compute the estimate given by the Range Rule of Thumb (RROT) Estimate (10 points), and compute the percentage error of the estimate (10 points). The formula for the RROT estimate is RROT estimate = Range/4 (where the range = maximum value – minimum value), on the assumption that the Standard Deviation » RROT estimate. The formula used to find the percentage error of the estimate is: Summarize what you learned: % Error = | RROT Estimate – Standard deviation | / Standard Deviation × 100 = ____ % . Data Set 1: No outliersData Set 2: 1 outlierData Set 3: 2 outliersData Set 4: Normal (Bell-Shaped) DistributionData Set 5: Uniform Distribution (evenly-spaced values) 68 68 68 68 68 133 133 133 133 133 Actual Standard deviation = RROT Estimate = % Error = 68 81 81 81 81 82 82 82 82 160 Actual Standard deviation = RROT Estimate = % Error = 38 86 88 89 90 90 91 92 104 152 Actual Standard deviation = RROT Estimate = % Error = 51 67 74 81 87 93 99 106 115 128 Actual Standard deviation = RROT Estimate = % Error = 65 73 81 89 97 105 113 121 129 137 Actual Standard deviation = RROT Estimate = % Error = a) Does the Range Rule of Thumb estimate more often underestimate or overestimate the actual standard deviation? (3 points) b) What is the largest percentage error? (3 points) c) Each of the data sets given above is artificially contrived. If you were to apply the RROT estimate to a typical real-world data set, about how accurate would you expect it to be (your answer here should be a numerical estimate of the percentage error, based on your previous results)? (4 points)
Statistics Question
Based on n the data extracted a sample of 1289 workers, aged 18 to 65, and obtained the following information on each work ...
Statistics Question
Based on n the data extracted a sample of 1289 workers, aged 18 to 65, and obtained the following information on each worker: Wage = hourly wage in $ Age = age in years Female = 1 if female worker Nonwhite = 1 if a nonwhite worker Union = 1 if a union member Education = years of schooling Experience = potential labor market experience in years 17.The full data set can be found in the attached file:-a. Based on these data, estimate the following model, obtaining the usual regression statistics.In Wage i = B1+B2 Age +B3 Female + B4 Nonwhite + B5 Union + B6 Education + B7 Experience +ui Where InWage = (natural logarithm of wage)
10 pages
MATGAM02 Rasmussen Module 3 Expended Value Problem Solving Quiz
In a game of 5-card poker, what is the probability of getting a three of a kind (exactly 3 cards of one
MATGAM02 Rasmussen Module 3 Expended Value Problem Solving Quiz
In a game of 5-card poker, what is the probability of getting a three of a kind (exactly 3 cards of one
RES 845 Grand Canyon University Confidence Interval SPSS Worksheet
Review the SPSS output file, which reports the results of the between-group (independent group) one-way ANOVA to see if th ...
RES 845 Grand Canyon University Confidence Interval SPSS Worksheet
Review the SPSS output file, which reports the results of the between-group (independent group) one-way ANOVA to see if the mean alcohol by volume (%) of the beer differs as a function of quality of the brand as rated by a beer expert (in 2012). Answer the following questions based on your observations of the SPSS output file:Looking at the descriptives (first information), do you see differences in the mean alcohol contents for the three levels of quality? Explain.Looking at the Test for Homogeneity of Variances (Levene Statistic), is it reasonable to proceed with the ANOVA? Is the assumption met, or violated? How do you know?Looking at the results of the ANOVA, is there a significant difference in the mean alcohol content for beers in the three quality groups? How do you know? Write the results in the following format: F(df value) = ___, p value = ______.The pairwise post hoc tests indicate which quality groups' means are statistically significantly different for the others. Using the results of the Tukey HSD post hoc test, what two quality rating groups had significantly different mean alcohol by volume levels? How do you know?
9 pages
Hcs493 V1 Wk2 Basic Statistical Math Concepts..
Reference: Ch. 1 and Ch. 2 of Statistics and Data Analytics for Health Data Management Select an additional 3 terms from t ...
Hcs493 V1 Wk2 Basic Statistical Math Concepts..
Reference: Ch. 1 and Ch. 2 of Statistics and Data Analytics for Health Data Management Select an additional 3 terms from the list of statistical terms ...
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