Histogram of Aecdf{A)O 20060010004008001200A> c (mean (A),sd(A),var (A))[1]24.6001986.50163 7482.53279. Explain why the mean and the standarddeviation are so large

Explanation: Mean: Mean is a measure of Central Tendency and it represents the average score of the…

Answered: Histogram of A ecdfA) O 200 600 1000…

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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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 0.6 The indicated la score, x, is。(Round to one decimal place as needed )
wages and standard deviation of all the workers taken together. gariaard deviation (in Rs.) in each section of a factory are given below. Calculate the mean 17 The number of workers employed, the mean wage (in Rs.) per month and lare Section No. of workers Mean wages Standard deviation employed (in Rs.) (in Rs.) 50 11130 600 60 11200 700 C 90 11150 800
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Q/ In the vehicle speed test, the results are given in the table below: Find 1. Arithmetic mean 2. Standard deviation 3. Skew coefficient 4. Kurtosis coefficient * Speed range (km/hr Speed range (km/hr Frequency(fi) Speed range (km/hr Frequency(fi) Frequency(fi) 34-35.9 4 44-45.9 22 54-55.9 13 36-37.9 46-47.9 8 56-57.9 8 38-39.9 48-49.9 18 58-59.9 40-41.9 10 50-51.9 17 60-61.9 42-43.9 7 52-53.9 16 62-63.9
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10 points Q/ In the vehicle speed test, the results are given in the table below: Find 1. Arithmetic mean 2. Standard deviation 3. Skew coefficient 4. Kurtosis coefficient Speed range (km/hr Speed range (km/hr Speed range (km/hr Frequency(fi) Frequency(fi) Frequency(fi) 34-35.9 44-45.9 22 54-55.9 13 36-37.9 46-47.9 8 56-57.9 38-39.9 4 48-49.9 18 58-59.9 6. 40-41.9 10 50-51.9 17 60-61.9 42-43.9 7 52-53.9 16 62-63.9 3 add file
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are you able to help me produce a graph which includes all of this Use the data generated in the laboratory to prepare a table and graph of the results, with a written summary. To include: Table of summary results that is mean and SD (standard deviation) only (not individual numbers for each tube) Graph of change in whatever parameter (plot the mean and error bar using the standard deviation) is used to determine the effect on the vegetable on the y-axis against sugar/NaCl concentration on x-axis, put both parameters on one graph. Do a correlation graph so add a correlation, R2 number, find this in Excel – add trendline and under trendline look for more options and at bottom at R2 to graph. Then in discussion use this value to comment on whether or not a correlation between the changes and the findings. Text: short summary of the key findings - NOT what happens for each tube but the general trend of the results and the correlation coefficient. with these set of results Solution…
Arandom sample of 77 eighth grade students scores on a national mathematics assessment test has a mean score of 266. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 260. Assume that the population standard deviation is 37. At a= 0.13, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Hg and H,. Choose the correct answer below. OB. Hg u 260 D. Họ: us 260 H, > 260 (claim) O. H: u= 260 (claim) H, u> 260 OF. H: pa 260 (claim) H, p 260 (claim) (b) Find the standardized test statistic z, and ts corresponding area 2= 1.42 (Round to two decimal places as needed) (c) Find the P-value. Pvalue =D(Round to three decimal places as needed.)
A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school admini exam is more than 270. Assume that the population standard deviation is 31. At a=0.09, is there enough evidence to support the administrator's claim? Complete parts (e (a) Write the claim mathematically and identify Ho and H,. Choose the correct answer below. O A. Ho u2270 (claim) Hp 270 OE Hiu=270 (claim) H> 270 Oc. OD. Ho: u=270 Haiu> 270 (claim) OF (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) (c) Find the P-value. P-value= (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Reject H.
To estimate the mean score ?μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.6.6.6. You want your sample mean ?⎯⎯⎯x¯ to estimate ?μ with an error of no more than 0.8 points0.8 points in either direction. What standard deviation must x¯ have so that 99.7% of all samples give an x¯ within 0.8 points of μ? Use the 68-95-99.7 rule. Give your answer to four decimal places. standard deviation of x¯: How large an SRS do you need in order to reduce the standard deviation of x¯ to the value you found? Give your answer rounded up to the nearest whole number. SRS size:

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Histogram of A ecdfA) O 200 600 1000 400 800 1200 A. > c (mean (A),sd (A),var (A)) [1] 24.60019 86.50163 7482.53279 Explain why the mean and the standard deviation are so large