Calculate the statistic needed to test the hypothesis stated in Question 11 based on your sample of 1,000 throws of a goat astragalus. 16. Calculate the statistic needed to test the hypothesis stated in Question 11 based on your sampleof 1,000 throws of a goat astragalus. 11. F. N. David used a modern sheep astragalus to estimate the chances of its landing on each ofthe four sides and provided us with the frequencies that we considered for the "fair" astragalus4.ייYou attempt to check that the frequency of getting a "1" that we used for a "fair" astragalus isילaccurate by conducting an experiment of your own. Your experiment consists of throwing a goatastragalus 1,000 times. Out of your sample of 1,000 throws of the goat astragalus, 89 times itlanded on "1".Write the null and the alternative hypothesis that the population proportion of "1"s obtainedfrom throwing a goat astragalus is the same as the number obtained by F. N. David using a sheepastragalus (i.e. the probability we used for a "fair" astragalus up to now).

We have given that Sample size n= 1000 Favorable cases x= 89 Sample proportion p^=x/n = 89/1000 =…

Answered: F. N. David used a modern sheep…

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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A sports enthusiast would like to determine if the average number of penalty minutes per game for teams in the National Hockey League is greater than 12 minutes. A sample of 30 games was taken, and the number of penalty minutes in each game was recorded. Select the appropriate hypotheses to be tested. Ho:μ=12Ho:μ=12Ha:μ>12Ha:μ>12 Ho:μ=12Ho:μ=12Ha:μ≠12Ha:μ≠12 Ho:¯y=12Ho:y¯=12Ha:¯y≠12Ha:y¯≠12 Ho:¯y=12Ho:y¯=12Ha:¯y>12
Question 10 For a two sample test for independent samples, which of the following hypothesis statements is correct? GA HO H2 H 2 8. Ho P2 H 2 OD. Hy H V2- 0 H P20
QUESTION 12 Suppose we are interested in whether travelers departing to Bali have spent researching potential health risks. Let the population proportion be denoted by p and assume we are interested in testing whether there is evidence that more than 40% of travelers have researched potential health risks. Which of the following represents the correct set of hypotheses for this 1-tailed test? O a. Ho: 0 = 0.4 H: р 0.4 O d. Ho: p = 0.4 H1: p> 0.4
Question 8 8 buses out of a fleet of 20 buses have a manufacturing defect. Given that 5 buses are selected; a) Construct the pmf representing the number of selected defective buses. b) Calculate the expected number of selected defective buses.
QUESTION 7 A social psychologist believes that football players who receive encouraging coaching styles versus players who receive strict coaching styles will be significantly different in the amount of touchdowns they score. He analyzes the seasons of two teams with the respective coaching styles to study this hypothesis. Which of the following hypothesis tests would be most appropriate given this scenario? O single-sample t-test O independent sample t-test O dependent sample t-test z-test
Question 16
Question 3 A A private bank has installed an ATM in the city bazaar area. It was found that the time between an arrival and completion of transaction varies from one minute to seven minutes. The arrival and service distribution times are given below. PLEASE SHOW WORKING b) Simulate 15 customers arriving at the using the random numbers given below.
In 2021 it was reported that 64% of adult Americans watch football regularly. You want to know if this percentage has increased since then. To do this you randomly sample 400 adults from across the United States. You ask all these adults, "Do you regularly watch football?" 268 of the adults respond that they do regularly watch football. Carry out the hypothesis test at alpha = 0.05 to test your claim. Please identify the followings A) null hypothesis B) alternative hypothesis C) test statistic D) critical value (s) E) p- value F) initial conclusion (reject null hypothesis or fail to reject null hypothesis) G) final conclusion regarding regarding to the given conclusion
In a random sample of 80 male students at a college, 28 said they frequently send at least one text message before getting out of bed in the morning. In a random sample of 105 female students at the same college, 50 said they frequently texted before getting out of bed. Let p₁= the proportion of all male students at this college who frequently text before getting up, and let p2= the corresponding proportion for female students. For a test of the hypothesis Ho: p₁-P2 = 0, which of the following is a correct expression for the test statistic? a. 0.35 -0.48 0.48(0.52) 0.35(0.65) 80 + 105 b. 0.350.48 0.35(0.65) 0.48(0.52) + 80 105 (0.42)(0.58) 185 Z=
Consider the following two random experiment scenarios and answer the questions that follow: Scenario 1 A basket contains 3 red and 4 green balls. A random experiment is performed such that a ball is randomly drawn from the basket, replaced back in the basket and then again a ball is randomly drawn from the basket. Let X is a random variable containing the count of red colored balls at the end of two trials. Scenario 2 A basket contains 3 red and 4 green balls. A random experiment is performed such that a ball is randomly drawn from the basket, not replaced back in the basket and then again a ball is randomly drawn from the basket. Let X is a random variable containing the count of green colored balls at the end of two trials. requried: 1.Compare the two scenarios by showing probability tree diagrams of the two. 2.Examine and comment on the shape of the distribution for the two scenarios.
Consider the following two random experiment scenarios and answer the questions that follow: Scenario 1 A basket contains 3 red and 4 green balls. A random experiment is performed such that a ball is randomly drawn from the basket, replaced back in the basket and then again a ball is randomly drawn from the basket. Let X is a random variable containing the count of red colored balls at the end of two trials. Scenario 2 A basket contains 3 red and 4 green balls. A random experiment is performed such that a ball is randomly drawn from the basket, not replaced back in the basket and then again a ball is randomly drawn from the basket. Let X is a random variable containing the count of green colored balls at the end of two trials. Now answer the following questions. a) Compare the two scenarios by showing probability tree diagrams of the two. b) Examine and comment on the shape of the distribution for the two scenarios.
QUESTION 8 A social psychologist gave a questionnaire about concern for farm workers to seven participants before and after they attended a film about union organization of farm workers to determine whether the film affected their level of concern. Which of the following hypothesis tests would be most appropriate given this scenario? O single-sample t-test independent sample t-test O dependent sample t-test Oz-test

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