23. In 2003, the student body of a state university in Michigan consists of 30% freshmen,the 2004 student body showed that there are 138 freshmen, 88 sophomores, 94 juniors,25% sophomores, 27% juniors, and 18% seniors. A sample of 400 students taken fromand 80 seniors. Test with 5% significance level to determine whether the student bodyproportions have changed using Chi-Square goodness of fit.

Given that: Category Observed Frequency Expected proportion Freshmen(A) 138 0.30…

Answered: 23. In 2003, the student body of a…

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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The length of fish were measured at 3 different lakes. Lake 1: 3.5, 4.2, 6.1, 5.2 Lake 2: 5.1, 6.2, 5.3, 2.1 Lake 3: 5.6, 7.1, 2.4, 4.1, 6.2 Enter the test statistic (to 4 decimal places)
11. The variance for the weight of a breed of cattle is 256 lb2. The mean is 453 lb. How heavy would the animal have to be to be in the top 16% of the herd? Select one:a. 719 lbs.b. 479 lbs.c. 511 lbs.d. 463 lbs.
9. Find the first quartile and the third quartile for the following data: 2:1, 2.1, 2.2, 2.4, 2.5, 2.5, 2.5, 2.5, 2.6, 2.6, 2.6, 2.7, 2.7, 2.7, 2.8, 2.9, 3.0, 3.0, 3.2, 3.2, 3.3, 3.3, 3.5, 3.6, 4.0. 7.3 Thisd Bie 25/0 2.5 3.2
A magazine invited women to visit their site to complete a surgery and 1500 respondents responses were recorded. When asked whether they would rather have more money or more sleep, 88% responded more money and 12% responded more sleep. How do I answer the questions with this information? 1) identify the variable in this study. 2) is the variable quantitative or qualitative? 3) what is the sample in this study? 4) what is the implied population?
Tutorial 1 Identify the population and the sample. 1) A surve y of 1378 Malaysian households found that 27% of the households own a computer. 2) W hen 1094 Malaysian households were surveyed; it was found that 67% of them owned two cars. 3) A survey of 2625 elementary school children found that 28% of the children could be classified as obese. Determine whether the numerical value is a parameter or a statistic. Explain your reasoning. 4) A recent sur vey by the alumni of a major university indicated that the average salary of 10,500 of its 175,000 graduates was RM95,000. 5) The average salary of all assembly - line employees at a certain car manufacturer is RM41,000.. 6) A survey of 1162 students was taken from a university with 10,000 students. Provide an appropriate response. 7) Explain the difference between a sample and a population. Determine whether the data are qualitative or quantitative. 8) the colors of automobiles on a used car lot 9) the number of complaint letters received…
List three types of samples and explain it.
Please answer all parts.
2. A test has a maximum possible score of 200. The results achieved by a class of 20 students are listed: 168, 152, 112, 88, 95, 123, 177, 166, 145, 104, 112, 156, 110, 141, 177, 166, 134, 190, 111, and 120. a) Determine the mean, median, and mode. b) What are the quartiles for this data set? c) Jacquelin's mark is in the 40th percentile for this group. Explain what the percentile means. What is Jacquelin's mark? (4

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