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Assignment - Project
In this project, use the pizza delivery problem data available.
a) Prepare a contingency table for the pizza "temperatures" at delivery ("< 59oC", "59oC to 67oC" and "67oC <") and the delivery "time" ("< 34 mins" and "34 mins ≤") variables. Hint: try cut function in R.
b) Use Cramer's V, Goodman-Kruskal's γ, Kendall's τb, Stuart's τc, Somers' D, and a stacked bar chart to explore the association between the categorised "time" and "temperature" variables.
c) Draw a scatter plot for the continuous "time" and "temperature" variables. Determine both the Bravais-Pearson and Spearman correlation coefficients.
d) Use methods of your choice to explore the relationship between temperature and driver, operator, number of ordered pizzas and bill. Is it clear which of the variables influence the pizza temperature?
Discuss the various impacts of outsourcing. Discuss the term sustainability, and its relevance for business organizations. Describe each of these systems: craft production, mass production, and lean production.
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QBM117 Business Statistics Assignment. One of the questions in a recent household survey asks respondents to count the total number of mobile phones owned by members of the household. Calculate the mean number of mobile phones owned per household
Construct a frequency table and display it as a histogram using a class width of 10 starting at 0. [Recall: LCB is included in the class interval whereas UCB is not included.] (Be sure to show all of your work, including your frequency chart.)
1. the study you will evaluate for your assignment isbinge drinking and alcohol-related behaviours amongst pacific
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Derive the expression for the PDF of X
Which variable is has the most favorable rating?Which variable has the most variation in the response?Below is a frequency distribution of thestress variable.Below is output from an ANOVA to test if there are differences in stress levels between age ..
Does the data in this sample support the claim of that the proportion of filled orders from the Tai Pi plant is greater than the proportion of filled order from the Seoul Plant?
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1. Assume 50 random samples of the same sample size are taken from a population, and a 90% confidence interval is constructed from each sample. How many of the intervals would you expect to contain the true population mean?
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