1. English test was administered to 19 boys and 21girls, Test whether the girls differ in their scoresfrom that of the boys. Use a=0.05. Follow the stepsin hypothesis testing.Вoys: 30, 28, 25, 24, 16, 10, 19, 27, 28,16,15, 23, 20, 18, 17, 12, 28, 9, 15.Girls: 27,18, 15, 10, 25, 29, 19, 23, 26, 20,18, 10, 16, 28, 29, 24, 20, 24, 27, 12, 9.

Introduction: Two small sample test: When the sample size of each of the two sample is small and…

Answered: 1. English test was administered to 19…

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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72a)It is a fact that cities with more churches also have more murders. If I were to use that information to claim that religion is bad for society because it encourages people to become murderers, this would be an example of which of the following misuses of statistics? Loaded questions. False causality. Biased samples. Data dredging. Data manipulation.
3. There is a teacher shortage across the nation. A random sample of teachers for different school levels were taken about job satisfaction and the results were recorded in the table below. High School Middle School Elementary Satisfied 35 30 62 Not satisfied 65 48 57 Is there sufficient evidence to say that school level taught and job satisfaction are associated?
Write out the sample space for the given experiment. Use the following letters to indicate each choice: O for olives, M for mushrooms, S for shrimp, E for eggs, I for Italian, and F for French. When deciding what you want to put into a salad for dinner at a restaurant, you will choose one of the following extra toppings: olives, mushrooms. Also, you will add one of following meats: shrimp, eggs. Lastly, you will decide on one of the following dressings: Italian, French. Answer E Tables E Keypad How to enter your answer (opens in new window) Keyboard Shortcut: Separate your answers using commas.
26) Solve the problem. 26) Use a 0.01 significance level to test the claim that the proportion of men who plan to vote in the next election is the same as the proportion of women who plan to vote. 300 men and 300 women were randomly selected and asked whether they planned to vote in the next election. The results are shown below. Men Women Plan to vote 170 Do not plan to vote 130 185 115
Help with number 1 and 2
3. Discuss the basic procedure in making inferences on two samples and give a situation where you can apply it.
A classic story involves four carpooling students who missed a test and gave as an excuse a flat tire. On the makeup test, the instructor asked the students to identify the particular tire that went flat. If they really didn't have a flat tire, would they be able to identify the same tire? A statistician asked 47 other randomly selected students to identify the tire they would select. The results are listed in the accompanying table. Use a 0.05 significance level to test the statistician's claim that the results fit a uniform distribution. What does the result suggest about the likelihood of four students identifying the same tire when they really didn't have a flat? Tire Number Selected Left Front 12 Right Front 8 ... Determine the null and alternative hypotheses. Ho: The tires are selected with the same frequency. H₁: At least one tire has a different frequency than the other tires. Calculate the test statistic, X². x² = (Round to three decimal places as needed.) Left Rear 14 Right…
The numbers 1, 2, 3 and 4 are written separately on four slips of pane- The slips are put in a box and mixed thoroughly. A person draws two slips from the box, one after the other, without replacement. Describe the sample space for the experiment
1O to Colnect a lepres 5. Make an inference about your population. You must write one or more sentences, even if you have a biased sample make the inference as if your sample is representative.
Which of the following are anecdotal and which are based on sample? a. Out of 200 students questioned, 40 admit ted they lied regularly. b. Bobbie says the produce at Market W is the freshest in the city. c. Out of 50 persons interviewed at a shop ping mall, 18 had made a purchase that day NEED ASAP. THANK YOU.
Please advise. Keep on tossing a coin until one gets a head. List 2 possible outcomes from this sample.
37. Suppose you repeated your hypothesis test over and over again with many different data sets. Which of the following statements is true? Group of answer choices The significance levels would change but the p-values would stay the same. The significance level would stay the same and so would the p-values. The significance level would stay the same but the p-values would change. The significance levels would change and so would the p-values. (THANK U)

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