05 May A Professor Of Physics Noticed That Individual Students’ Exam Grades In His Introductory Course …
1. A professor of physics noticed that individual students’ exam grades in his introductory course in physics taught in the morning historically are normally distributed. The class being taught in the morning has an average of 79 and a standard deviation of 9.5. There are 16 students enrolled in the morning class this semester. Individual exam grades in the evening class historically are also normally distributed. The evening class has an average of 75.5 with the standard deviation of 12. There are 25 students enrolled in the evening class.
a) During the semester every class takes several exams. After every exam professor calculates the class average grade on this exam. What is the distribution of class average grades for different exams (i.e. exam 1 average, exam 2 average, etc.) for the morning session? Specify the distribution type (i.e. binomial, normal, standard normal) and its parameters (i.e. mean and standard deviation).
What is the distribution of class average grades for different exams (i.e. exam 1 average, exam 2 average, etc.) for the evening session? Again, specify the distribution and its parameters.
b) What is the chance that in the morning section the class average grade on the next exam will be B- (i.e. anywhere between 80 to 83)?
c) What is the probability that in the evening section the class average on the next exam will be C- or below (i.e. lower than 73.0)?
d) What is the probability that on the next exam the evening section will score on average higher than the morning section? To receive credit for this question, provide as much details as possible. HINT: you need to find the distribution of (evening class average exam grade MINUS morning class average exam grade).
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.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. 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.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.