QUESTION 4 The grades of 49 students on their first management test are shown below. Using pivote table, Construct frequency distribution, relative frequency distribution and commulative relative frequency distribution. Let the first class be 30-39. a. How many students failed in this test (score less than 59)? b. What percentage of the class has grade B or A (score more than 80)? HW2.6.csv a. 4 b. 44.90 a. 9 b. 22 a. 9.6 b. 44.90 a.4 b. 22

The following partially completed Excel spreadsheet contains information for computing an annual budget. Assume salary and bonus values are net of taxes and fixed expenses are based on annual salary. Use Excel's Goal Seek to determine what percentage will Ramirez need to save monthly to have $20,000 in his savings account by the end of the year. B 1 Ramirez Monthly Budget 2 3 Variables: 4 Annual salary 54,900.00 $ 5 One-time bonus 10,000.00 6 Fixed expenses 50% 7 Monthly savings 10% 8 Bonus savings 50% 9 10 Annual Estimates 11 Savings 12 Spending money 13 Fixed expenses

10 Suppose that in a particular state a standardized test is given to all graduating se- niors. Let score denote a student's score on the test. Someone discovers that perfor- mance on the test is related to the size of the student's graduating high school class. The relationship is quadratic: score = 45.6+ .082 class .000147 class², where class is the number of students in the graduating class. (i) How do you literally interpret the value 45.6 in the equation? By itself, is it of much interest? Explain. (ii) From the equation, what is the optimal size of the graduating class (the size that maximizes the test score)? (Round your answer to the nearest integer.) What is the highest achievable test score? (iii) Sketch a graph that illustrates your solution in part (ii). (iv) Does it seem likely that score and class would have a deterministic relationship? That is, is it realistic to think that once you know the size of a student's graduating class you know, with certainty, his or her test…

The number of sick days taken (per month) by 200 factory workers is summarized below. Number of Days Frequency 0-5 120 6-10 65 11-15 14 16-20 1. The number of workers who took at least 11 sick days per month?

The table below shows a stem-and-leaf diagram for the test scores of students in Liberal Arts Math. Stems 56 78 7 9 Leaves 78 3478 034459 002257 56 How many students took the test? What is the lowest score on the test?

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pard D-F

2. A city had an unemployment rate of 7%. The mayor pledged to lower this figure and supported programs to decrease unemployment. A group of citizens wanted to test with 0.032 label of significance if the unemployment rate had actually decreased, so they obtained a random sample of 500 citizens to see what proportion of the sample was unemployed. Only 32 citizens in the above sample is still unemployed. What is the probability of Type II error if the actual unemployment rate is 6.5% please don't use software everything needs to be done by hand. Explain because I don't understand my professor. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.