Complex Statistics Problems with Elaborate Answers : Page - 7

Task 1: Ungrouped Descriptive StatisticsTask 1: Ungrouped Descriptive Statistics To gain some insights into the typical price consumers are willing to pay for a stand mixer, a retailer of kitchen appliances randomly selected 130 relevant invoices for transactions completed in October2020. Descriptive statistics, computed to summarise the data, are presented in Table 1 below. . This table has been made available in the Excel file named “...

The attached data set is an Excel file with three spreadsheets (Sales data.xlsx). The Excel file contains sales, pricing and distribution figures of the different variants of a particular product for a full year. The spreadsheets each contain different data, as described as below: Distribution (Spreadsheet 1). This contains the percentage of storesof the supermarket chain that stored each product variant in its shelves per week. A 100 for ...

Data Analysis and Statistical Techniques8-2 Jupyter Notebook (Discussion Prep) External Learning Tool You have viewed this topic This activity will take you to the Jupyter Notebook containing the Python scripts for your Module Eight discussion. It is highly recommended that you read through the discussion prompt before completing your work in this notebook. When you are finished completing and running the Python scripts, begin work on your initi...

Part 1: Data Analysis WorkbookCompetencies In this project, you will demonstrate your mastery of the following competencies: Use descriptive statistics for business analysis Perform regression analysis to address an authentic problem Apply statistics in the business environment Overview You have been hired as a consultant by a large hospital chain. As part of its expansion plan, the organization wants to open a new hospital in a small- to medium...

Task:   For this assignment, follow the instructions provided to complete the second part of the statistical analysis using the provided database. You will complete the third part of this analysis in Week 9.1.Retrieve your coded Excel spreadsheet from Assignment 8.1 Statistical Analysis Part 1. Delete the two coded columns from last week’s assignment.2.Using IntellectusStatistics:a.Create a project/name.b.Upload the Excel datasheet.c...

Educational Psychology PhD EPSY 6303 Educational Measurement Order : Assignment 1 (EXCEL) assignment1.xlsx (attached file) Module 2: Basic Statistical Concepts for Measurement Assignment 1 Use the “assignment1.sav” or “assignment1.xlsx” data to answer the following questions. 1. Calculate descriptive statistics for reading writing math and science 2. Calculate the correlations among reading writing math and science 3. Deve...

While bivariate regression is used to predict the impact of one independent variable on one dependent variable, multivariate regression is used to predict the impact of two or more independent variables on one dependent variable. In this scenario, you will continue to work as a business consultant trainee with the superstore client. The superstore would like to know which variables have an impact on its sales revenue and number of orders. Your vi...

Intuitive design of a data cube from a functional specification of operational database A train company has an operational database with information about the daily train trips between the cities located in the same or different countries. The company would like to implement a data warehouse that can be used to implement the following applications. (i) find the total number of kilometers made by trains in a given year, departing from the stations...

Task:   Overview Data is an important part of business and operations. As such, data privacy and appropriate handling of information is crucial for accurate tracking and monitoring of ethical practices. Your knowledge and understanding of ethical and legitimate use of data is vital as you validate your analyses of the superstore in your role as a business consultant.   In this scenario, you are a business consultant trainee working with a s...

A candy manufacturer sells boxes of its candy with an advertised weight of 50 grams. Weights of candy per box are known to follow a normal distribution with standard deviation 2.2 grams. A random sample of five boxes has a mean weight of 51.8 grams. We conduct a hypothesis test to determine if there is evidence that the true mean weight of all boxes of candy differs from the advertised weight. The P-value for the appropriate test of significance ...

The Project Answer the questions, providing a short, written answer in complete sentences. Feel free to work in groups of up to four people. When you submit your assignment, please submit one assignment per group and write down the names of all people who have worked on the assignment. Each individual in the group will receive the same grade for the assignment. You can do this individually, if you prefer to. Collaboration is encouraged; copying a...

TaskTask: All analyses must be performed in R using the tidyverse and glmnet packages discussed in class. Fill in all your solutions in the appropriate spaces provided in this Word document, and then upload a PDF copy of your solutions to Canvas. Only PDF copies will be graded. Brief overview of assignmentIn this assignment you will be using the dataset GlobalAncestry.csv, which is available on Canvas. You will be analyzing genetic data from 2...

Calculating Mean and Standard Deviation of SampleYou are a Business Analyst working for the ABC Ball Bearing company. An hour ago, you sent an order of 74 boxes of your A1 ball bearings to a customer on your delivery truck. You have just found out that your truck is going to go over a bridge that has a weight limit of 11,500 lbs. You need to determine if your truck will safely make it over the bridge. If you determine that the truck cannot make ...

MethodologyFor this question, return to the data set on lead content in lip products, in the Excel spreadsheet Lead Data.xlsx on Courselink1 . A reminder that the columns in the data set are: Column 1 : Sample Code. A unique identifying code for each lip product in the sample Column 2 : Country of Purchase. Where the lip product was purchased Column 3 : Production Country. Where the lip product was produced. Column 4 : Average Lead Content (Pb) ...

Using Department and Left VariablesCreate a pivot table for the variables ‘department’ and ‘left’ (youcan use the table created in question 1f if you wish) and use it to answer thefollowing questions. You do not need to include the table in your answer script.i. Of those who left the workplace, what percentage worked in accounting? ii. Of those who worked in marketing, what percentage left the workplace? iii. What perce...