Reference no: EM132525218 , Length: word count:2000

STT100 Statistics for Business

Statistical Research Project involving Hypothesis Testing

STEP 1.
Select one of the areas of investigation given in class. Alternatively, choose one of your own.
SELECT ONE of the following:Select either 1. , 2. , 3., 4. Or 5 Or a dataset of your own choice
1. The Average Age of ALL People in Different Countries.
a) Use the attached link:
b) See also the attached "Dataset List of countries by median age"
c) Copy from the excel file the column "Median years" and past it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries
Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic (see later)
d) Select a country with a median age either much HIGHER or Much Lower than the average.

NOTE: in the most important part of the assignment you will need to research WHY, this countries, median age is significantly different to the average AND you will also need to research the CONSEQUENCES of this difference.

2. The Obesity Rate of People in Different Countries, using list of countries by Body Mass Index.

a) You must first define body mass index and explain how it is used to measure obesity.
b) Use the attached link

c) See also the attached "Dataset List of countries by BMI"
d) Copy from the excel file the column "Overall rank" and past it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries;
Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic
e) Select a country with a BMI either much HIGHER or Much Lower than the average.
NOTE: in the most important part of the assignment you will need to research
WHY, this country's (or this group of countries), BMI is significantly different to the average
AND you will also need to research the CONSEQUENCES of this difference.

3. The Boy births as a ratio of boy/ girl births in Different Countries, using list of countries by Sex Selection.
a) You must first define what the sex ratio indicates.
b) Use the attached link
c) See also the attached "Dataset List of countries by sex ratio"
d) Copy from the excel file the column "countries by sex ratio AT BIRTH" and past it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries;
Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic

f) Select a country with a SEX RATIO either much HIGHER or Much Lower than the average.

NOTE: in the most important part of the assignment you will need to research
WHY, this country's (or this group of countries), SEX RATIO is significantly different to the average AND you will also need to research the CONSEQUENCES of this difference.

A good choice here would be China.

4. The ratio of males to females in the workforce in Different Countries.
a) You must first define what the male to female ratios in the workforce means.
b) Use the attached link

c) See also the attached "Dataset List of males to female ratio in the workforce"
d) Copy from the excel file the column "2012" and past it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries;

Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic (see later)

Select a country with A male to female
RATIO in the workforce
either much HIGHER or Much Lower than
the average.
NOTE: in the most important part of the
assignment you will need to research
WHY, this country's (or this group of countries),
Male to female RATIO is
significantly different to the average
AND you will also need to research
the CONSEQUENCES of this difference.

5. The Literacy rates in Different Countries.
a) You must first define what is meant by literacy rates.
b) Use the attached link

c) See also the attached "Dataset List of literacy rates in different countries"
d) Copy from the excel file the column "Youth rates" and paste it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries

Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic (see later)
Select a country with a literacy rate
either much HIGHER or Much Lower than
the average.
NOTE: in the most important part of the
assignment you will need to research
WHY, this country's (or this group of countries),
Literacy ratis
significantly different to the average
AND you will also need to research
the CONSEQUENCES of this difference.

STEP 2.
Conduct a Hypothesis test using the following STEPS:
• State the Null hypothesis (Ho) and the Alternative hypothesis (HA).
• Choose the level of significance.
• Find the critical value.
• Find the test statistic.
You do this using the appropriate formula.

STEP 3.
Draw a STATISTICAL CONCLUSIONS.
What does your result indicate?
DO YOU REJECT OR ACCEPT THE NULL HYPOTHESIS that your sample is either significantly different to the population or, not. NOTE: Generally you will have selected a sample that IS significantly different.

STEP 4.
Draw a ANALYTICAL CONCLUSIONS.
This is the part of the assignment is where you will gain the most marks. Your, answer to this part will determine your MARK overall.
You must use referenced research to find out details about:
• WHY the country that you have considered is different to the world average. What are the special reasons for this?
• What are the consequences and effects and costs (or benefits) for this country in having this difference?
• What government or social policies might be used to correct this difference or to benefit from this difference? Consider what other countries have done.
• What other changes might this difference cause or what other changes might correct this difference? Why might it restrict this countries development. What special features of this country may form barriers to correcting this problem?
• Use graphs facts and other statistics to illustrate and extend your answer.

Attachment:- Statistics for Business.rar