Instructions: Read, voderotond and solve the following problem carefuly. Wite the solutions and answers on the spaces provided below. The following table gives the monthly salaries (in thousands of pesos) of six government employees. Suppose that random samples of size 4 are taken from this population of six employees. Employee Salary 12 16 20 24 D 28 How many samples are possible? C(N,n)= - List them and compute the mean of each sample Possible Samples Sample Means Construct the sampling distrbution of the sample means. Sample Means Frequency Probability

Instructions: Read, voderotond and solve the following problem carefuly. Wite the solutions and answers on the spaces provided below. The following table gives the monthly salaries (in thousands of pesos) of six government employees. Suppose that random samples of size 4 are taken from this population of six employees. Employee Salary 12 16 20 24 D 28 How many samples are possible? C(N,n)= - List them and compute the mean of each sample Possible Samples Sample Means Construct the sampling distrbution of the sample means. Sample Means Frequency Probability

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Answer items 4-6: The goal of this exercise is to observe the effect of sampling by treating the 100 SHS students as target population and drawing random samples. The table below shows the height in centimeter of 100 senior high school students at Hope School of Fisheries. Find the population mean height of 100 senior high students. By simple random sampling, take a sample of 10 individuals and record the sample mean. Do this 5 times. That is, you will have a set of 5 sample means (point estimates). Do all sample means from item b vary? How do these sample means compare to the population mean? Repeat (b) but this time take a sample of 20 individuals. How do these sample means compare to the population mean? Repeat (b) but this time take a sample of 35 individuals. How do these sample means compare to the population mean? Describe how the distribution of sample means changes as sample size increases. What is the advantage of a larger sample size? 156 182 154 146…
I need 41, 42, 43, and 44 please.
3. The number of goals scored by Wayne Gretzky was recorded for seasons 1978 – 1999. (Please note the data set has been ordered from smallest to the largest for your convenience). 5, 9, 11, 16, 23, 23, 31, 38, 40, 40, 41, 46, 51, 52, 54, 55, 62, 71, 73, 87, 92 A. Construct a stem-and-leaf display for the data and describe the shape of the distribution (symmetric, skewed left, skewed right, bell-shaped, etc., any obvious outliers). B. What is the fraction of the data that is less than or equal to 31? C. Given that Ex, = 920 and Ex = 52 436 find the mean and standard deviation. D. Find the (i) median, (ii) Q1, (iii)Q:, (iv) the interquartile range (IQR), (v) the lower and upper fences. E. Construct a Box-plot for the data. What are your conclusions about the shape of the distribution? Compare with the results in Part A. F. Would the mean or the median be the most suitable measure to use to represent the central location of this distribution? Give reasons for your answer.
2 The data set below is used for questions 1-3. The times for 35 students to take a final exam (in hours) are listed below: The data is listed in rows with 5 values each, just for your convenience in reading them. There is nothing special about the groupings. 0.2, 0.5, 0.7, 1.1, 1.2, 1.2, 1.3, 1.4, 1.4, 1.4, 1.5, 1.5, 1.6, 1.6, 1.7, 1.9, 2.0, 2.1, 2.1, 2.2, 2.3, 2.5, 2.6, 2.8, 2.9, 3.0, 3.0, 3.1, 3.7, 3.7, 4.0, 4.1, 4.5, 5.1, 5.8 Which distribution might be appropriate for this data? For the instructor, this was question 3. X Binomial X Exponential / Gamma X Negative binomial X Normal X Poisson
The following is data for the first and second Quiz scores for 8 students in a class. First Quiz (Q1) Second Quiz (Q2) 15 15 16 13 17 15 22 21 24 24 26 21 29 27 30 27 Plot the points in the grid below, then sketch a line that best fits the data. Use the line above to predict the value of the second quiz score if a student had a score of 1212 on the first test. (Please enter a whole number)
Would love three help. Q9
Solve. 4) Construct a box plot from the data below. 20 25 26 26 26 272933 41 43 45 46 47 4850 50 50 51 53 55 57 60 61 62 63
Suppose you are given the following five pairs of scores: X Y 8 1 7 2 6 3 9 4 0 10 Create a scatter diagram of these scores in the following diagram. For each of the five (X, Y) pairs, click on the plotting symbol (the black X) in the upper right corner of the tool, and drag it to the appropriate location on the grid. y 10 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 The mean x score is Mx = 5 x 7 10 Based on your scatter diagram, you would expect the correlation to be and the mean y score is My = ?
Need help with this
Scenario: The following table lists the typing speed as measured by a standard typing test for 12 college students, along with the number of pages they had to type for their Sociological Research Methods class. Use the data to answer the Three questions listed below. Make sure that you summarize and report if the results were significant using the F ratio formula. Report your answers in the Computed Value Tables. Student Number of pages typed Typing speed Chris 37 73 Mary 6 24 Paul 12 36 Juan 24 72 Marcel 16 50 Olga 7 19 Ni 22 49 Nima 4 6 Sari 34 48 Jarrod 32 59 Kevin 17 38 Lisa 8 16 Computed Values Record the Results for each value ∑x 490 ∑y 219 ∑xy 10662 SSx 4159.66 SSy 1210.25 SP 1719.5 r 0.76636 a 1.37 b 0.41388 Regression Equation Computed values Compute and record SS residual 499.4515…
which set of data does the stem and leaf plot represent
Scenario: The following table lists the typing speed as measured by a standard typing test for 12 college students, along with the number of pages they had to type for their Sociological Research Methods class. Use the data to answer the Three questions listed below. Make sure that you summarize and report if the results were significant using the F ratio formula. Report your answers in the Computed Value Tables. Student Number of pages typed Typing speed Chris 37 73 Mary 6 24 Paul 12 36 Juan 24 72 Marcel 16 50 Olga 7 19 Ni 22 49 Nima 4 6 Sari 34 48 Jarrod 32 59 Kevin 17 38 Lisa 8 16 Using α = .05 test the significance of the regression equation. Use the value of r (r = 0.76636) computed above to find SS residual and SS regression and round your answers to three decimal places for SS residual, SS regression, MS residual, MS regression. Round to two decimal places…