statistical question needs to done within 48 hours

“Title: semester 1, 2020 BUS105 computing assignment” “Name:” “Student number:” “Sample: ”

“(students must use the dataset provided each student has been allocated their own sample)”

Overview

You need to submit a word file with the answers to 9 questions the first 8 are about the dataset the last question is a paraphrasing task (refer to pages 3 to 6)

You will use your dataset and the automatic dataset summarizer to get the descriptive statistics that are used questions 1 to 5 and the inferential statistics that are used in question 6 to 8. to check you have correctly obtained your dataset check both p-values are correct when you investigate both categorical variables (question 6)

The word count can be less than 1500 words if you are giving answers that demonstrate you have understood the material.

Summary of the dataset (question 1 to 8 given on pages 3 to 6 are about the dataset)

Suppose market research company XYZ did a survey in two different countries. The survey was designed to gather basic information about some customers and their opinion about TV model XYZ

The survey questions were

“What is your Income?” “What is your gender?” “How much are you willing to spend on a TV?” “Would you buy TV model XYZ?”

So there are two datasets, one for each country One dataset is the survey answers country 1 One dataset is the survey answers country 2

students MUST use the datasets they are given, They CANNOT use datasets they make themselves or take from other sources.

Each of the datasets consists of the following variables,

income? : a quantitative variable Gender?: a categorical variable Amount you would spend? : A quantitative variable, the amount they would spend on a TV Would you buy?: A categorical variable, would they buy TV model XYZ

paste the following cover page and the answers to questions 1 to 9 below into a word document

“Title: semester 1, 2020 BUS105 computing assignment” “Name:” “Student number:” “Sample: ”

“(students must use the dataset provided each student has been allocated their own sample)”

Question 1 a) Just using the information for Country 1

i) Paste in descriptive sample statistics that let you investigate the relationship between the variables “Gender?” and “Would you buy?” using the sample

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics (choose one)

Difference between sample means - Difference between sample proportions - correlation coefficient r

b) Just using the information for Country 2

i) Paste in descriptive sample statistics that let you investigate the claim there is a relationship between the variables “Gender?” and “Would you buy?”

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics (chose one)

Difference between sample means - Difference between sample proportions - correlation coefficient r

c) Compare the results in parts (a) and (b)

Question 2

a) Just using the information for country 1

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics (chose one)

Difference between sample means - Difference between sample proportions - correlation coefficient r

b) Just using the information for Country 2

i) Paste in descriptive sample statistics that let you investigate the claim there is a relationship between the variables “would you buy?” and “amount you would spend?”

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics

Difference between sample means - Difference between sample proportions - correlation coefficient r

c) Compare the results in parts (a) and (b)

Question 3

a) Just using the information for Country 1

i) Paste in descriptive sample statistics and a graph that let you investigate the relationship between the variables “Income?” and “Amount you would spend?” using the sample

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics

Difference between sample means - Difference between sample proportions - correlation coefficient r

b) Just using the information for Country 2

i) Paste in descriptive sample statistics and a graph that let you investigate the claim there is a relationship between the variables “Income?” and “Amount you would spend?” using the sample

ii) Use the output in part (i) to describe the relationship between the two variables, your discussion must use one of the following sample statistics

Difference between sample means - Difference between sample proportions - correlation coefficient r

c) Compare the results in parts (a) and (b)

Question 4

a) Considering all people in the country 1 dataset

i) What is sample size n

ii) What is the sample proportion of people that would buy the model XYZ TV

iii) Use the answers in part (i) and (ii) to find the zscore of the sample proportion if you assume the population proportion p=0.5

b) Considering all people in the country 2 dataset

i) What is sample size n

ii) What is the sample proportion of people that would buy the model XYZ TV

iii) Use the answers to parts (i) and (ii) to find zscore of the sample proportion if you assume the population proportion p=0.5

Question 5

Just using the country 1 data set, more specifically the “variables income” and “would they buy” of the country 1 dataset

a) Just considering the people that would buy the TV

i) What is sample size, sample mean and sample standard deviation of income

Hint: this is easy just the dataset summarizer

ii) find a 95% confidence interval for income

b) Just considering the people would not buy the TV

i) What is sample size, sample mean and sample standard deviation of income

Hint: this is easy just the dataset summarizer

ii) find a 95% confidence interval for income

Question 6

a) Just using the information for country 1

i) Paste in inferential statistics that measure evidence for the claim there is a relationship between the variables “Gender?” and “Would you buy?” if you consider the whole population

ii) Make suitable comments about the output in part (i)

b) Just using the information for country 2

i) Paste in inferential statistics that measure evidence for the claim there is a relationship between the variables “Gender?” and “Would you buy?” if you consider the whole population

ii) Make suitable comments about the output in part (i)

c) Compare the results in parts (a) and (b)

Question 7

a) Just using the information for country 1

i) Paste in computer output that measure evidence for the claim there is a relationship between the variables “would you buy?” and “amount you would spend?” if you consider the whole population

Hint: inferential statistics measure evidence for a claim.

ii) Make suitable comments about the output in part (i)

b) Just using the information for country 2

i) Paste in computer output that measures evidence for the claim there is a relationship between the variables “would you buy?” and “amount you would spend?” if you consider the whole population

ii) Make suitable comments about the output in part (i)

c) Compare the results in parts (a) and (b)

Question 8

a) Just using the information for country 1

i) Paste in computer output that measures evidence for the claim there is a relationship between the variables “Income?” and “amount you would spend?” if you consider the whole population Hint: inferential statistics measure evidence for a claim.

ii) Make suitable comments about the output in part (i)

b) Just using the information for country 2

i) Paste in computer output that measures evidence for the claim there is a relationship between the variables “Income?” and “amount you would spend?” if you consider the whole population

ii) Make suitable comments about the output in part (i)

c) Compare the results in parts (a) and (b)

Question 9

You need to pick ONE of the following options for question 9, Your answer should be about 300 words long