21 Oct Assignment 1: Confidence Interval for one sample continuous outcome, sample size >=30.? 1. Suppose you are a junior researcher of a research team. You want
Assignment 1: Confidence Interval for one sample continuous outcome, sample size >=30.
1. Suppose you are a junior researcher of a research team. You want to know the true mean age of 2,500 freshmen students of MSU. You have randomly selected 144 freshmen (n=144), and collected their age. The mean age x¯ = 25.3 years with a standard deviation s = 5.7.
a. Compute a 95% confidence interval (CI) for the true mean age of freshmen. (10 points).
b. Interpret your findings. (5 points).
Assignment 2: Confidence Interval for one sample continuous outcome, sample size <30.
Now assume that due to time and money constraints, you have collected data (age) only from 28 students (n=28) with the mean x¯ =24.2 years and standard deviation s = 4.3.
a. Compute a 95% confidence interval (CI) for the true mean age for freshmen (10 points).
b. Interpret your findings (5 points).
c. Is there any difference between when you have collected data from 144 students and you have collected data from only 28 students? If so, what are the difference? Why it happens? (5 bonus points).
Assignment 3: Confidence Interval for one sample dichotomous outcome
In a sample of 1,540 patients attending at emergency room (ER) department, 231 patients were diagnosed with cardiac failure.
a. Calculate the confidence interval for patients with heart failure with 90% confidence level. (10 points).
b. Interpret the findings. (5 points)
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.