Anufu.zilustration 19. According to a survey the following results were obtained :Girls200No, of candidates appeared at an examinationMarriedMarried and successfulUnmarried and successfulBoys800150705505020110

Answered: Image /qna-images/answer/255100b2-e1da-482e-beb7-a6025d4925db.jpg

Answered: lustration 19. According to a survey…

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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Similar questions

Which set of scores has the smallest variability? A)11, 17, 31, 53 B) 5, 11, 42, 22 C) 145, 143, 145, 147 D) 27, 105, 10, 80
3 - )) In an exam attended by 800 people, the average of the grades is 65 and the standard deviation is 7.5, showing a normal distribution. Forty samples of n=25 people were taken from this population to the returned lottery. How many of these 40 samples have an average of more than 66?a) 16 B) 22 C) 10 D) 11 E) 12
8
Q7 Ans : a)6 ; b)30students
The data below was collected for all 50 states in the US. Start by dividing the states into 2 groups:those with Poverty under 12% and those with Poverty at least 12 %. 1) Test the claim that the two groups have the same mean number of Gun Deaths.2) Test the claim that the two groups have the same mean number of High School Graduates 3) Test the claim that the two groups have the same mean number for Unemployment. 4) For each group, create a confidence interval for the number of Gun Deaths. How do they compare? 5) For each group, create a confidence interval for the number of High School Graduates. How do theycompare? 6) For each group, create a confidence interval for the number for Unemployment. How do they compare?
WHAT IS THE T-SCORE FOR A SCORE OF 90
Suppose that in a large class, the instructor announces that the average grade on an exam is 75. Which is more likely to be closer to 75: a.) The exam grade of a randomly selected student in the class? b.) The mean exam grade of a sample of 10 sttudents? Explain.
D) reject/fail to reject. is not/ is E) is not/ is reject/ support equal/ greater than / greater than or equal / not equal/ less than / less than or equal
The results section of an article reports the following “IQ scores of the sample differ from the population mean of 100, single sample t (19) = 2.80, p < .05, two tail”. Based on this result, how many people were included in the sample? Select one: 20 21 19 38
the total is 50 student so based on this table: the mid-value of the class with highest frequency is? A.50 B.52 C.53 D.52.5
2. A statistic test has a mean of 78 and a standard deviation of 6. a) What is the z-score of a student who scored 89 on the test? b) What is the z-score of a student who scored 64 on the test? c) What is the z-score of a student who scored 78 on the test? d) What is the score of a student whose z-score is 1.24? e) What is the score of a student whose z-score is -.31? f) What is the score of a student whose z-score is -1? 3. For males in a certain towWn, the systolic blood pressure is normally distributed with a mean of 135 and a standard deviation of 8. a) What is the probability that a randomly selected male's systolic blood pressure will be greater than 143? b) What is the probability that a randomly selected male's systolic blood pressure will be less than 119?
2. Dr. Xyz claims that the average salary of workers in Jones is P35,000. A random sample of 100 workers are found that their mean salary is P40,000. H, H,: EXPLANATION :

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lustration 19. According to a survey the following results were obtained: Girls 200 50 20 110 No, of candidates appeared at an examination Married Married and successful Unmarried and successful Вoys 800 150 70 550