Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 600 potsherds was found, of which 362 were identified as Santa Fe black-on-white.

(a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.)


(b) Find a 95% confidence interval for p. (Round your answers to three decimal places.)

Give a brief statement of the meaning of the confidence interval.

5% of all confidence intervals would include the true proportion of potsherds.95% of all confidence intervals would include the true proportion of potsherds.    5% of the confidence intervals created using this method would include the true proportion of potsherds.95% of the confidence intervals created using this method would include the true proportion of potsherds.

(c) Do you think that np > 5 and nq > 5 are satisfied for this problem? Explain why this would be an important consideration.

No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately normal.No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately binomial.    Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately normal.Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately binomial.

A study of the ages of motorcyclists killed in crashes involves the random selection of 132

drivers with a sample mean of 32.95 years. Assume that the SAMPLE standard deviation is 9.4 years. a) Find the critical value tα /2 for a 90% confidence interval

b) Construct and interpret the 90% confidence interval estimate of the mean age of all motorcyclists killed in crashes. Use the z-table method.

dence interval.

Question 2. Randomly selected statistics students of the author participated in an experiment to test their ability to determine when 60 seconds has passed. Forty students yielded a sample mean of

57.3 sec. Assume that the sample standard deviation is σ = 8.5 sec.

1. a) Find the critical value tα /2 for a 80% confidence interval

2. b) Construct a 80% confidence interval estimate of the population mean of all statistics students. Use the z-table method.

3. c) Use TI84/83 calculator method.

4. d) Write a conclusion.

Briefly describe the steps involved in the initiation of a contraction in a skeletal muscle fibre. List the steps in the order that they occur. Start with an action potential on the sarcolemma and end with a description about how cross-bridges form. Include details about the intracellular structures and ion/s involved. You should provide 8 pieces of relevant information to obtain 8 marks.

Consider a class Book that contains information about a Book. The class should has the following attributes:

• The title of the book

• The author of the book

• Year of publication (e.g. 1994)

• The number of people that have rated this book as a 1 (Terrible)

• The number of people that have rated this book as a 2 (Bad)

• The number of people that have rated this book as a 3 (OK)

• The number of people that have rated this book as a 4 (Good)

• The number of people that have rated this book as a 5 (Great)

Implement the class with accessors and mutators for the title of the book, author of the book and year of publication. Write a method addRating that takes an integer as an input parameter. The method should verify that the parameter is a number between 1 and 5, and if so, increment by one the number of people rating the book that matches the input parameter. For example, if 3 is the input parameter, then the number of people that rated the book as a 3 should be incremented by one. Write another method, getAverage, that returns the average value for all the book ratings.

Test the class by writing a main method that creates at least two Book objects, adds at least five ratings for each book, and output the title of the book, author of the book, year of publication, and average rating for each book object.

Provide the UML class diagram for the Book class.

Note that the question does not require the use of arrays.

The program should be well-structured and should have a reasonable set of methods in addition to the main method. It should use a good coding style, proper indentation, meaningful identifier names and appropriate comments throughout.

The program should also include a method (eg, UserInfo( )) to output your student details (name, referenceID) at the start of program results.

Devise suitable test data (in addition to the above example) to test your program.

Program

#include<iostream>

using namespace std;

struct bookRecord //structure definition

{

            //structure members definition

char title[30];

            char main_author[30];

            int year_publish;

            float price;

};

int main()

{

            struct bookRecord book1; // declare structure variable;

            //Get data from user

            cout<<"Enter book title: ";

            cin>>book1.title;

            cout<<"Enter main author name: ";

            cin>>book1.main_author;        

            cout<<"Enter year publish: ";

            cin>>book1.year_publish;

            cout<<"Enter book price RM: ";

            cin>>book1.price;

            //Print the information the screen output

            cout<<"\n\nBook Information";

            cout<<"\nTitle: "<<book1.title;

cout<<"\nMain author: "<<book1.maon_author;

            cout<<"\nYear published "<<book1.year_publish;

cout<<"\nBook price: RM"<<book1.price;

            return 0;

Task 1

Create a program to store a record using structure. You need to define one structure template with minimum 3 data members. In main function, declare one structure variable, then get input from user and store into the variable. Then your program will display the content of the structure on the screen output.

Task 2

Use the structure definition in Task 1 to store 5 records using an array of structure with five elements. Get the data from user, store into the array, then display the output in table format.

Task 3

You are required to create a program which involve nested structure. What u need to do is to create another structure that related to the structure definition in Task 1. For example you may have structure such as BookInfor and AuthorInfor. Therefore you can produce information like the book A is written by the this author B. Your program should store five records accordingly

}

What type of study would you use to conduct research on a study where you were trying to find out if the benefits out weigh the risks of a paramedic giving tPA to a patient before they arrive at the hospital.

cohort Study

case-control Study

Randomized Controlled Trial.

Systematic Review.

Meta-Analysis

ASSIGNMENT 1

TOPIC: INTRODUCTION OF FLUID MECHANICS

QUESTION 1: 10 MARKS

In your own words, explain what have you learnt from fluid mechanics course.

QUESTION 2: 40 MARKS

Refined crude oil has been used to lubricate moving parts in a wide variety of machines and engines. These petroleum-based lubricants are extracted from natural crude oil, and must be refined, desalted, dewaxed, and distilled from crude feedstock. However, recently, engineers are moving towards non-petroleum based lubricants or known as synthetic lubricants. Obtain information about non-petroleum based lubricants and summarize your findings in a brief report by following the format given below. The report should contain minimum 1500 words (excluding figure and table title and content, references)

QUESTION 3: 50 MARKS

It is predicted that nanotechnology and the use of nano sized objects will improvise many processes and products. Among new new nanotechnology areas is that of nano scale fluid mechanics or known as nanofluid. Fluid behavior at the nano scale can be entirely different than that for the usual everyday flows. Obtain various information of nano fluid mechanics and summarize your findings in a brief report by following the format given below. The report should contain minimum 1700 words (excluding figure and table title and content, references)