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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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Topic CORRELATION OF TWO VARIABLES Look at the data and Find the value of r in three ways/formulations scatter chart & coefficient correlation and with formulation X Y X Y X Y 22 18 19 25 11 17 15 16 7 36 5 6 9 31 6 27 26 45 7 8 46 45 19 30 4 2 11 18 8 18 45 36 27 18 1 3 19 12 19 37 9 7 26 16 36 42 18 28 35 47 25 20 46 21 49 22 16 12 9 25
Topic: Products moment correlation Please help to complete.
QUESTION Ta Test the significance of the con.stion coefficient at 0-0.05, Use the Pevalue method. An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year nd the mumber (in hundred thousands) of acres burned. The data for 8 recent years are shown. Describe the relationship. Number of fires x Number of acres burned y 73 90 59 48 83 61 57 46 62 43 20 26 49 15 30 16 Ot%=2.600 so 0.02 0.05 so we reject the null hypothesis. Ot= 2.600 so 0.02 0.05 so wve do not reject the null hypothesis.
Small Sample Size The dataset imagpop contains information about 10000 people from an imaginary population. One of the variables is math, which indicates whether the individual was a mathematics major. You can see the distribution of math majors in the population in the row percents shown below: rowPerc(xtabs(~math,data=imagpop)) ##      no      yes Total##   95.37   4.63 100.00 Suppose you were interested in the following Research Question: Are quantitative skills an important part of your job? You decide to quickly take a simple random sample of size 10 from this population. You can see the distribution of math majors in the sample below: set.seed(2014)smallsamp<-popsamp(n=10,pop=imagpop)rowPerc(xtabs(~math,data=smallsamp)) ##   no yes Total## 100   0   100 Which of the following statements best describes a problem that may arise in this scenario? Group of answer choices ( ) The sampled individuals that were selected might all have jobs that require quantitative skills. This…
Town Date time Temp. max Temp. min temp Feels like max Feels like min Feels like dew London 2022-07-07 23.3 16.7 19.5 23.3 16.7 19.5 11.5 London 2022-07-08 26.9 15 21.2 26.7 15 21.2 12.4 London 2022-07-09 25 15.9 20.6 25 15.9 20.6 11.4 London 2022-07-10 26.6 14.7 20.8 26.6 14.7 20.8 12.3 London 2022-07-11 29 16.4 22.8 28.2 16.4 22.7 12.5 London 2022-07-12 30.1 18.4 23.9 28.6 18.4 23.6 12.2 London 2022-07-13 26.5 17.3 20.9 26.5 17.3 20.9 14.3 London 2022-07-14 23.5 12 17.7 23.5 12 17.7 7.4 London 2022-07-15 24.6 13.4 18.4 24.6 13.4 18.4 8.8 London 2022-07-16 30 13.6 21.7 29.4 13.6 21.5 11.7 London 2022-07-17 25.9 13.7 19.5 25.9 13.7 19.5 9.4 From the data/table above  Calculate and discuss** the followings. Please provide the steps for the calculation…
Inference about Two Means ____________________________ Sleep in hours:   Females: 8    6    6.5    7.5    7    6.5    8    6    5    7    9.5                 7.5    8    7    5    7    9    8    9    7    7    7    6                Males: 7    6    6.5    6    6.5    8.5    5    5    8    5.5 1. Using data from a former class, give a 95% confidence interval for the difference of the population means for the amount of sleep of male and female college students. Check your conditions and include boxplots. Include the sample statistics(sample sizes, means, standard deviations), degrees of freedom, Ta/2 ,SE(standard error), E(Margin of Error) and summary sentence. Conditions Sample statistics                                                            SE                                                                                         E                                                                               df…
Which of the following can be inferred from the figure above? Error Bars are Standard Errors. (Quality of content ratings, based on a sample of college students, is on the y-axis) Hulu and Disney+ don't have a significantly different quality of content Netflix has significantly higher quality content than Hulu HBO Max has higher quality content than all other services We cannot infer any of the above from the information given.
According to the table, can you solve the question?
Populations shifts in a certain city follow a particular pattern every year. If a person is living in the city they will stay in the city 0% of the time, move to the suburbs 50% of the time, and move out-of- state 50% of the time. If a person is living in the suburbs, they will move into the city 20% of the time, stay in the suburbs 50% of the time, and move out-of-state 30% of the time. If the person lives out-of-state, they will move to the city 10% of the time, move to the suburbs 10% of the time, and stay out-of state 80% of the time. In the long-run, what is the probability that a person will live out-of- state?
Town Date time Temp. max Temp. min temp Feels like max Feels like min Feels like dew London 2022-07-07 23.3 16.7 19.5 23.3 16.7 19.5 11.5 London 2022-07-08 26.9 15 21.2 26.7 15 21.2 12.4 London 2022-07-09 25 15.9 20.6 25 15.9 20.6 11.4 London 2022-07-10 26.6 14.7 20.8 26.6 14.7 20.8 12.3 London 2022-07-11 29 16.4 22.8 28.2 16.4 22.7 12.5 London 2022-07-12 30.1 18.4 23.9 28.6 18.4 23.6 12.2 London 2022-07-13 26.5 17.3 20.9 26.5 17.3 20.9 14.3 London 2022-07-14 23.5 12 17.7 23.5 12 17.7 7.4 London 2022-07-15 24.6 13.4 18.4 24.6 13.4 18.4 8.8 London 2022-07-16 30 13.6 21.7 29.4 13.6 21.5 11.7 London 2022-07-17 25.9 13.7 19.5 25.9 13.7 19.5 9.4 From the data/table above Calculate and discuss** the followings. Please provide the steps for the calculation…
Safari File Edit View History Bookmarks Develop Window Help 93% (4) Tue 1:35 PM knewton.com FVSU Dyn... U Student S.. Fort Valley... Drive - Go... Paraphrasi. В Brainly.co... B Free Virtu... b Questions... Defining D... Slack | Tut... 3 X2 5 4 X3 Xy oblox Area - A1 + A2 + A3 + A4 Area - f(x1)Ax + f(x2)Ax + f(x3)Ax + f(x4)Ax Area = f(2)Ax + f(3)Ax + f(4)Ax + f(5)Ax 2 Area - 1(1) + (1) +-(1) + 2 77 (1) = 2.567 30 Quate V ta kva 3 2 YouTube a Transcript FEEDBACK Content attribution Question Find the upper sum for f(x) = x² over [-1, 1] with n = 4. Give your answer in fractional form. Provide your answer below: В FEEDBAСК MORE INSTRUCTION SUBMIT Content attribution 23,435 APR 1 13 stv A W ...
What type of data are required for Independent Variable (IV) and Dependent variable (DV) in ANOVA? Group of answer choices DV is continuous and IV is categorical DV is categorical and IV is categorical DV is categorical and IV is continuous DV is continuous and IV is continuous Type of data does not matter for ANOVA

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period stock a stock b 1 4.9 1.8 2 6.2 9.6 3 -1.5 -3.8 4 2.1 -5.9 5 -5.4 6.7 6 6.8 -7.4 find the convariance