As practiced by many in buying skirts or pants, they use the neckline to check if the waistline ofthe skirts or pants fits them. We would like to study this claim by using a random sample ofneckline and waistline of 15 people.The data collected are summarized as follows:Subject1 2 345 6 7 8 910 11 1214 1513Neckline35 34 384538 33 3842 4433 35 31 3335 30(cm)Waistline(cm) 8397 10086 82 7782 9162 9357 67 93573-4. The regression equation is:Waistline' =- 3.99642.30321neckline5. Using the regression equation/model for waistline in Number 3-4, estimate thewaistline if the neckline of a person is 37 cm. Round off final answer to two decimal places.6-8. Solve for the coefficient of determination, r2 (Express the answer in percentage form, r2x 100%; Round off final answers to two decimal places):E(y/ – 9)² =E(y – 9)² =9. Solve for the coefficient of nondetermination (Express the answer in percentage form;Round off final answer to two decimal places):

The objective is to determine the regression equation: Enter the data in Excel Go to DATA > Data…

Answered: As practiced by many in buying skirts…

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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As practiced by many in buying skirts or pants, they use the neckline to check if the waistline of the skirts or pants fits them. We would like to study this claim by using a random sample of neckline and waistline of 15 people. The data collected are summarized as follows: Subject 1 2 3 4 5 17 8 169 10 11 12 13 14 15 Neckline 35 34 38 45 38 33 38 42 44 33 35 31 33 35 30 (cm) Waistline(cm) 83 66 97 100 86 82 77 82 91 62 93 57 67 93 57 Construct a scatter plot for the waistline and neckline using the data presented What does the scatter plot tell you about the sign of the slope of the regression equation? (positive or negative) 1-2. Estimate the regression line of neckline and waistline. Using the model, we wish to estimate the waistline given information about the neckline. Solve for the y intercept, a and the slope, b. Round off final answers to two decimal places. a = b = 3-4. The regression equation is: Waistline'= neckline 5. Using the regression equation/model for waistline in…
20. Given the information below, what kind of samples are being described? Sample 1: Test scores for 35 statistics students. Sample 2: Test scores for 42 biology students who do not study statistics. A. Dependent samples B. Unknown samples C. Independent samples D. One sample
The heights (in centimeters) of some randomly selected Men's World Cup soccer players from both Europe and the U.S. are given below. Europe 169 170 171 175 175 175 178 180 181 182 184 185 185 187 189 United States 167 168 169 173 176 176 178 180 180 181 183 183 186 187 187 Is there a difference between the heights of European and American soccer players? What is the test statistic for this test? 0.7399 0.3352 0.3700 0.6648 0.2601
3. What is the sample mean for the following sample of scores? Scores: 1, 2, 5, 4
The income of residents of Chicago, IL has a bell shaped and symmetric histogram, with a mean of $65,000 and a S.D. of $13,000. 1) What percentage of residents have an income more than $78,000 or less than $52,000? 2) what percentage of residents have an income between $39,000 and $91,000? 3) What percentage of residents have an income less than $104,000? 4) What percentage have an income more than $65000? 5) Less than $26,000 Hint: you need to draw a curve for each part 1-4, and calculate the mean ± 1, 2, 3 S.D.
Another type of painted ceramic vessel is called three-circle red-on-white ( Mimbres Mogollon Archaeology). At four different sites in the Wind Mountain archaeological region, the number of such sherds was counted in local dwelling excavations. Site I Site II Site III Site IV 15 13 38 15 22 2 20 21 4 31 15 13 15 7 44 34 17 23 12 11 12 Shall we reject or not reject the claim that there is no difference in the population mean three-circle red-on-white sherd counts for the four sites? Use a 5% level of significance. (a) What is the level of significance? (b) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Use 3 decimal places.) SSTOT = SSBET = SSW = Find d.f.BET, d.f.W, MSBET, and MSW. (Use 3 decimal places for MSBET, and MSW.) dfBET = dfW = MSBET = MSW = Find the value of the sample F statistic. (Use 3 decimal places.)What are the degrees of freedom??(numerator)?(denominator)(c) Find the P-value of the sample…
1. Sample data about the listing price of a house is collected from Surrey, Guilford area in 2022 and the data is given below. Using the data answer the following questions: N 1 2 3 4 5 Listing Price 1049900 11 1229000 1049900 12 1230000 1050000 13 1075000 14 1298999 1299000 1299000 1075000 15 16 1398000 1078800 1179000 17 18 1398000 1399000 1188000 1188000 19 1449900 1225000 20 1450000 a. What is the mean listing price of a home? b. Generate appropriate numerical summaries for the listing price of a home, the sample standard deviation, etc. 6 7 8 9 10 Listing Price N Listing Price 21 1450000 22 1450000 23 1469900 24 1475000 25 1475000 26 1480000 1499000 27 28 1499000 29 1499233 30 1499900 N C. Use these summaries to develop a 95% confidence interval to estimate the mean listing price of a house in your selected city. That is, you will be using the sampling data you collected to estimate the population parameter (listing price). Make sure to show both your calculations and a final…
what is the median for parents?
2. What is the sample size of a certain study if the population size is 1,000,000 and 10% margin of error are expected? a.400 c,200 b.300 d.100 3.Which of the following examples is secondary data? a.Direct Interview c.journals b.Indirect or Questionnaire d.Observation
1. A researcher plans to conduct a survey among students in a public high school. If the population of thisschool is 5,000, find the sample size and the percentage from the N population. (Margin of error is 5%)A = {9,10,11,7,13}B = {10,10,10,10,10}C = {1,1,10,19,19}a. Calculate the mean of each data set.b. Calculate the standard deviation of each data set.c. Which set has the largest standard deviation?
a) Based on the histogram above, what is the class width? b) What is the sample size? Frequency 5.0- 4.0- 3.0- 2.0- 1.0- .0 20 30 40 50 60 Age 70 80 90 100
My electric bills for June, July, and August last summer were $75, $75, and $150, respectively. What was the mean amount for the three bills? Question 14 options: $75 $100 $125 $150

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