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15 Sep
2020

Please find below SMDM Project instructions: You have to submit 2 files :  1.Answer Report: In…

Category:ACADEMICIAN

SOLUTION AT Australian Expert Writers

Please find below SMDM Project instructions:
You have to submit 2 files :
Answer Report: In this, you need to submit all the answers to all the questions sequentially. It should include the detailed explanation of the approach used, insights, inferences, all outputs of codes like graphs, tables etc.Your report should not be filled with codes. You will be evaluated based on the business report.
Jupyter Notebook file: This is a must and will be used for reference while evaluating
Any assignment found copied/ plagiarized with another person will not be graded and marked as zero.
Please ensure timely submission as a post-deadline assignment will not be accepted.
Problem 1
Wholesale Customers Analysis (Download Data)
 Problem Statement:
A wholesale distributor operating in different regions of Portugal has information on annual spending of several items in their stores across different regions and channels. The data consists of 440 large retailers’ annual spending on 6 different varieties of products in 3 different regions (Lisbon, Oporto, Other) and across different sales channel (Hotel, Retail).
1.1 Use methods of descriptive statistics to summarize data. Which Region and which Channel seems to spend more? Which Region and which Channel seems to spend less?
1.2 There are 6 different varieties of items are considered. Do all varieties show similar behaviour across Region and Channel?
1.3 based on a descriptive measure of variability, which item shows the most inconsistent behaviour? Which items show the least inconsistent behaviour?
1.4 Are there any outliers in the data?
1.5 based on this report, what are the recommendations?
Problem 2 – (Download Survey Data)
The Student News Service at Clear Mountain State University (CMSU) has decided to gather data about the undergraduate students that attend CMSU. CMSU creates and distributes a survey of 14 questions and receives responses from 62 undergraduates (stored in the Survey data set).
2.1. For this data, construct the following contingency tables (Keep Gender as row variable)
2.1.1. Gender and Major
2.1.2. Gender and Grad Intention
2.1.3. Gender and Employment
2.1.4. Gender and Computer
2.2. Assume that the sample is representative of the population of CMSU. Based on the data, answer the following question:
2.2.1. What is the probability that a randomly selected CMSU student will be male?
2.2.2. What is the probability that a randomly selected CMSU student will be female?
2.3. Assume that the sample is representative of the population of CMSU. Based on the data, answer the following question:
2.3.1. Find the conditional probability of different majors among the male students in CMSU.
2.3.2 Find the conditional probability of different majors among the female students of CMSU.
2.4. Assume that the sample is a representative of the population of CMSU. Based on the data, answer the following question:
2.4.1. Find the probability That a randomly chosen student is a male and intends to graduate.
2.4.2 Find the probability that a randomly selected student is a female and does NOT have a laptop. 
2.5. Assume that the sample is representative of the population of CMSU. Based on the data, answer the following question:
2.5.1. Find the probability that a randomly chosen student is either a male or has full-time employment?
2.5.2. Find the conditional probability that given a female student is randomly chosen, she is majoring in international business or management.
2.6.  Construct a contingency table of Gender and Intent to Graduate at 2 levels (Yes/No). The Undecided students are not considered now and the table is a 2×2 table. Do you think the graduate intention and being female are independent events?
2.7. Note that there are four numerical (continuous) variables in the data set, GPA, Salary, Spending, and Text Messages.
Answer the following questions based on the data
2.6.1. If a student is chosen randomly, what is the probability that his/her GPA is less than 3?
2.6.2. Find the conditional probability that a randomly selected male earns 50 or more. Find the conditional probability that a randomly selected female earns 50 or more.
2.8. Note that there are four numerical (continuous) variables in the data set, GPA, Salary, Spending, and Text Messages. For each of them comment whether they follow a normal distribution. Write a note summarizing your conclusions.
Problem 3 (Download Data)
An important quality characteristic used by the manufacturers of ABC asphalt shingles is the amount of moisture the shingles contain when they are packaged. Customers may feel that they have purchased a product lacking in quality if they find moisture and wet shingles inside the packaging.   In some cases, excessive moisture can cause the granules attached to the shingles for texture and colouring purposes to fall off the shingles resulting in appearance problems. To monitor the amount of moisture present, the company conducts moisture tests. A shingle is weighed and then dried. The shingle is then reweighed, and based on the amount of moisture taken out of the product, the pounds of moisture per 100 square feet is calculated. The company would like to show that the mean moisture content is less than 0.35 pound per 100 square feet.
The file (A & B shingles.csv) includes 36 measurements (in pounds per 100 square feet) for A shingles and 31 for B shingles.
3.1 Do you think there is evidence that means moisture contents in both types of shingles are within the permissible limits? State your conclusions clearly showing all steps.
3.2 Do you think that the population mean for shingles A and B are equal? Form the hypothesis and conduct the test of the hypothesis. What assumption do you need to check before the test for equality of means is performed?
Please reflect on all that you have learnt while working on this project

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