(b) Professor GeniusAtCalculus has two lecture sections (A and B) of the same 4th year
Advanced Calculus (AMA 4301) course in Semester 2. She wants to investigate whether
section A students maybe ”smarter” than section B students by comparing their performances in the midterm test. A random sample of 12 students were taken from section
A, with mean midterm test score of 78.8 and standard deviation 8.5; and a random
sample of 9 students were taken from section B, with mean midterm test score of 86
and standard deviation 9.3. Assume the population standard deviations of midterm test
scores for both sections are the same. Construct the 90% confidence interval for the
difference in midterm test scores of the two sections. Based on the sample midterm test
scores from the two sections, can Professor GeniusAtCalculus conclude that there is any
evidence that one section of students are ”smarter” than the other section? Justify your
conclusions.
[8 marks]

(c) The COVID-19 (coronavirus) mortality rate of a you country is defined as the ratio of the
number of deaths due to COVID-19 divided by the number of (confirmed) cases of
COVID-19 in that country. Suppose we want to investigate if there is any difference
between the COVID-19 mortality rate in the US and the UK. On April 18, 2020, out of
a sample of 671,493 cases of COVID-19 in the US, there was 33,288 deaths; and out of
a sample of 109,754 cases of COVID-19 in the UK, there was 14,606 deaths. What is
the 92% confidence interval in the true difference in the mortality rates between the two
countries? What can you conclude about the difference in the mortality rates between
the US and the UK? Justify your conclusions. [8 marks]

Create your own e-commerce business in Saudi Arabia (website or mobile application), you need to explain the process that you will follow in building your e-commerce presence.

Before you begin to build a website or app of your own, there are some important questions you will need to think about and answer. The answers to these questions will drive the development and implementation of your e-commerce presence.

Set up Your E-Commerce Presence

• What is the idea? (the visioning process)

• Introduce your e-commerce business.
  • Provide an overview of your business idea
• Product and type of services.
  • What are the different types of products? Explain
  • What kinds of services are provided by your online store? [ customer service, exchange and return, delivery and payment options] Explain
• Business statement.
• Business vision.
• Business objective.

• Where’s the money:
  • What is the company’s business model?
  • Give a general idea of how your business will generate revenues

• Who and where is the target audience? Explain demographics, lifestyle, consumption patterns, etc.
• What is the ballpark? Characterize the marketplace. - Size, growth, demographics, structure.
• Where’s the content coming from?
• Know yourself— conduct a SWOT analysis for your business.
• Develop an e-commerce presence map.
• Develop a timeline: Milestones. - 6 phases.
• How much will this cost?

Building an E-Commerce Site: A Systematic Approach

• Planning: The Systems Development Life Cycle

• Systems analysis/planning

• Business objectives. What are the capabilities you want your site to have?
• System functionalities (Shopping cart, payment system …. etc.)
• Information requirements (Dynamic text and graphics catalog … etc.)

• Systems design

• (Logical and Physical)
• How it will look likes in terms of design and format

• Building the system (a simple website layout)

• Create your own website using wix.com www.wix.com
• Or you can design the layout using any free e-commerce website template.
• Include 2-4 screenshots of your site

• Testing (What type of testing will be applied?)
• Implementation

Choosing Software

The development of e-commerce required a great deal more interactive functionality, such as the ability to respond to user input (name and address forms), take customer orders for goods and services, clear credit card transactions on the fly, consult price and product databases, and even adjust advertising on the screen based on user characteristics.

• • Functionality for web server
  • Provides basic functionality for sales
• Online catalogue
• Shopping cart
• Credit card processing

Explain the different software you need for your site functionality.

Choosing Hardware

• Underlying computing equipment needed for e-commerce functionality
• Right-Sizing Your Hardware Platform: The Demand Side and the Supply Side
• Explain the different hardware needed for your site or app.

Payment and Security

• What are the methods of payment you are going to use in your online store and why?
• What are the commonly used technologies to secure your online transactions?
• Develop a privacy policy. The policy should outline how information will be collected and used?

Categorize marketing and advertising strategy and method.

• Explain the online, offline and social media marketing strategies you will use to bring people to your website? And why?

Explain your business e-commerce process

• Explain in detail all the steps from the time a visit is recorded until the final user buys a product.

Conclude your report.

A bag contains 7 red marbles, 5 white marbles, and 9 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red?

The probability that all the marbles are red is  .?

What is the probability that exactly two of the marbles are red?
The probability that exactly two of the marbles are red is  .

What is the probability that none of the marbles are red?
The probability of picking no red marbles is

The mean number of sick days an employee takes per year is believed to be about 10. Members of a personnel department do not believe this figure. They randomly survey 8 employees. The number of sick days they took for the past year are as follows: 12; 6; 14; 3; 11; 9; 7; 9. Let X = the number of sick days they took for the past year. Should the personnel team believe that the mean number is about 10? Conduct a hypothesis test at the 5% level. State the distribution to use for the test. What is the test statistic? What is the p-value? Construct a 95% confidence interval for the true mean. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Round your answers to three decimal places.) **Please use a TI*$ Plus where possible**

Question 2: List two (2) complications from asthma  

Using your knowledge of anatomy and pathophysiology, explain in detail why one of these complications could occur. Ensure ALL your statements are supported with scholarly recent and relevant literature

Provide five examples of how the Internet of Things (IoT) will influence your career practicing mechanical engineering

o Explain (in detail and with examples) how life and society will benefit from this evolution

You are tasked to build a voltaic cell with at least a 3v output. In detail explain your voltaic cell; naming each component, describing their function, and provide the complete balance redox reaction

Question 2 Consider the new trade model. Show how a country can be better o when it trades with an identical country. Explain your answer in detail using a diagram(s)..

Solve h(x) =l -2x l

Solve y = 2 (x + 4)2 - 3

Please explain for each of the above provide examples · write down five (5) points on the graph of each equation · For each of your equation, does the graph of each equation have any intercepts? · State the domain for each of your equations. Write them in interval notation. · State the range for each of your equations. Write them in interval notation. · State whether each of the equations is a function or not giving your reasons for the answer. · Select one of your graphs and assume it has been shifted three units upward and four units to the left. · Incorporate the following four math vocabulary words into your discussion. Use bold font to emphasize the words in your writing. Do not write definitions; use sentences describing the thought behind your math.

o Function

o Relation

o Vertical Line test

o Transformation

create your own haunted house 5.What does the outside of your haunted house look like? When was it built? What is its architectural style? 6.What is the history of your haunted house? What happened here? Why is it haunted? 7.Who or what haunts your haunted house? Why are they haunting it? Explain in detail using cosmological or theological information. In other words, is there a religious or philosophical reason why whoever is haunting the house cannot “move on”? 8.What can visitors expect to see/feel/hear/etc. When they visit your haunted house? Be specific here.