Publications by fname lname & fname lname
Assignment 7
Data prep for modeling Data Summary: The variables: store, and holiday flag are continuous, but should be categorical ## Store Date Weekly_Sales Holiday_Flag ## Min. : 1 Length:6435 Min. : 209986 Min. :0.00000 ## 1st Qu.:12 Class :character 1st Qu.: 553350 1st Qu.:0.00000 ## Median :23 ...
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Assignment 6
1. Is there an association between leaving the company and having a work accident? ## ## ## Cell Contents ## |-------------------------| ## | N | ## | Chi-square contribution | ## | N / Row Total | ## | N / Col Total | ## | N / Table Total | ## |-------------------------| ## ## ## Total Obs...
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Assignment 6
1. Is there an association between leaving the company and having a work accident? ## ## ## Cell Contents ## |-------------------------| ## | N | ## | Chi-square contribution | ## | N / Row Total | ## | N / Col Total | ## | N / Table Total | ## |-------------------------| ## ## ## Total Obs...
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Assignment 5
1. Is there a difference in satisfaction level between those that left and those that stayed in the company? Employees that stay, on average, are more satisfied. ## ## Welch Two Sample t-test ## ## data: hr$satisfaction_level by hr$Employee_Status ## t = -46.636, df = 5167, p-value < 2.2e-16 ## alternative hypothesis: true difference in means b...
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Delete Me
t-test of MPG by Transmission ## ## Welch Two Sample t-test ## ## data: cars1$mpg by cars1$am_char ## t = -3.7671, df = 18.332, p-value = 0.001374 ## alternative hypothesis: true difference in means between group Automatic and group Manual is not equal to 0 ## 95 percent confidence interval: ## -11.280194 -3.209684 ## sample estimates: ## mea...
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Test Run 2
Comparison of MPG by Transmission ## ## Welch Two Sample t-test ## ## data: cars1$mpg by cars1$am_char ## t = -3.7671, df = 18.332, p-value = 0.001374 ## alternative hypothesis: true difference in means between group Automatic and group Manual is not equal to 0 ## 95 percent confidence interval: ## -11.280194 -3.209684 ## sample estimates: ##...
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test run
Is there a difference in mpg between automatic and manual transmission? ## ## Welch Two Sample t-test ## ## data: cars1$mpg by cars1$am_char ## t = -3.7671, df = 18.332, p-value = 0.001374 ## alternative hypothesis: true difference in means between group Automatic and group Manual is not equal to 0 ## 95 percent confidence interval: ## -11.280...
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Assignment 1
1a. Create a histogram for employee satisfaction 1b. Create a histogram for employee last evaluation. 2. Create a bar plot for the average satisfaction of employees by the variable that indicates whether they left of stayed at the company...
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Assignment 1
1. Create a histogram for employee satisfaction 1. Create a histogram for last evaluation. 2. Create a bar plot for the average satisfaction of employees by the variable that indicates whether they left of stayed at the company...
239 sym 1 img
Assignment 1
1. Create a histogram for employee satisfaction and last evaluation. 2. Create a bar plot for the average satisfaction of employees by the variable that indicates whether they left of stayed at the company...
218 sym 1 img