Topics Loops while Statement Description Write a program that computes the letter grades of students in a class from knowing their scores in a test. A student test score varies from 0 to 100. For a student, the program first asks the student’s name and the student’s test score. Then, it displays the student name, the test score and the letter grade. It repeats this process for each student. The user indicates the end of student data by entering two consecutive forward slashes ( // ) when asked for the student name. At the end, the program displays a summary report including the following: · The total number of students. · The total number of students receiving grade “A”. · The total number of students receiving grade “B”. · The total number of students receiving grade “C”. · The total number of students receiving grade “D”. · The total number of students receiving grade “F”. The program calculates a student's the letter grade from the student's test score as follows: A is 90 to 100 points B is 80 to 89 points C is 70 to 79 points D is 60 to 69 points F is 0 to 59 points. Requirements Do this exercise using a While statement and an If/Else If statement. Testing For turning in the assignment, perform the test run below using the input data shown Test Run (User input is shown in bold). Enter Student Name Alan Enter Student Score 75 Alan 75 C Enter Student Name Bob Enter Student Score: 90 Bob 90 A Enter Student Name Cathy Enter Student Score 80 Cathy 80 B Enter Student Name Dave Enter Student Score: 55 Dave 55 F Enter Student Name Eve Enter Student Score 85 Eve 85 B Enter Student Name // Summary Report Total Students count 5 A student count 1 B student count: 2 C student count 1 D student 0 F students 1 Sample Code string name; double score; //Initias setup cout << "Enter student name" << endl; cin >> name; //Test while (name != "//") { cout << "Enter student score" << endl; cin >> score; //more code here //Update setup out << "Enter student name" << endl; cin >> name; } //display summary report

The combined SAT scores for the students at a local high school are normally distributed with a mean of 1521 and a standard deviation of 298. The local college includes a minimum score of 1044 in its admission requirements. What percentage of students from this school earn scores that fail to satisfy the admission requirement?

write formal null and alternative hypotheses for the following proposal:

GCC Students that use public transportation and GCC students that use cars as their form of transportation. measure the number of times they are late/absent to class and expect student who take public transportation to have more tardies and absentees'

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.62 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are at least 1.76? Please do not round your answer.

In a trial of Pfizer’s new math-anxiety-reducing drug, a random sample of 100 students yielded 58 who showed significant improvement. Construct a 92% confidence interval for π, the population proportion of all students who would be helped by the drug. (Round to two decimals places)

Among a student group 46% use Google Chrome, 20% Internet Explorer, 10% Firefox, 5% Mozilla, and the rest use Safari. What is the probability that you need to pick 7 students to find 2 students using Google Chrome? Report answer to 3 decimals.

Topic: muscle tissue Briefly explain how the structure of the tissue allows for the function of the tissue. Be sure your post is relating specific aspects of its structure to function. This discussion is not asking students to simply describe structure and then describe function. Rather, it is asking students to relate structure to function.

Overview

In this assignment you will apply what you have learned about standard deviation and normal curves to solve a number of problems, including finding the area under selected sections of a normal curve using z-scores, then solve a problem using normal distributions.

Part 1:

The weights of all one hundred (100) 9th graders at a school are measured, and it is found that the mean of all the measurements is 100 lbs., with a standard deviation of 15 lbs.   Explain how you would use this information to determine the percentage of students who weighed between 85 lbs and 115 lbs. Make sure your explanation includes the use of z-scores.

Part 2:

Using the example in part 1 above, answer the following questions in the same document you used to answer the questions from part 1. Make sure you show all the work required by the questions.

• What is the percentage of students who weighed between 85 lbs and 115 lbs? (Show calculations)
• What is the z-score of a student who weighed 105 lbs? (Show calculations)
• If a student weighed only 60 lbs, how many students out of the one hundred 9th graders would weigh more? (Hint: calculate the percentage 1st)

Part 3:

The following year, the 9th grade students are weighed again, and this time it is found that the mean of all weights is 108 lbs, and the standard deviation is 17 lbs. Answer the following questions, using the same document you used in parts 1 and 2 to show how you arrived at your answers.

Compare two students, one from the first class who weighed 98 lbs, and one from the second class who weighed 100 lbs.

• Which of the two students was heavier relative to their class? (Hint:compare z-scores)
• What percentage of students in the first class were heavier than the 98 lb. student?
• What percentage of students in the second class were heavier than the 100 lb. student?