In symbols, the alternative, or research, hypothesis for this test would be: Scenario: Terry Teacher suspects thatkindergarten class sizes in Alameda countyare larger than average. According to theCalifornia Department of Education, theaverage kindergarten class size in Californiais 21.9. For a random sample of 36 AlamedaCounty kindergarten classes, the averageclass size was 23 with a standard deviationof two. Run a test to assess Terry Teacher'shypothesis at the a=.05 level.Question: In symbols, the null hypothesis forthis test would be:H # 23H = 23H # 21.9µ = 21.9

Answered: Scenario: Terry Teacher suspects that…

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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Use the following for questions 24 to 26: A large office building has four entrances through which people can enter. One of the four entrances has had improved landscaping installed. An industrial psychologist wanted to see if people tend to use the entrance that has the improved landscaping more often. Using the buildings video surveillance system he randomly selected 200 people who entered the building. He found that 80 (40%) of the 200 entered through the improved entrance. He would like to determine if this is significantly more than we would expect if all the entrances were equally likely. To determine this he will conduct a test of Ho: p=0.25 vs. Ha: p>0.25. 24. In carrying out his test what null distribution should he use? (0.4)(1-0.4) a. A normal distribution centered at 0.25 with standard deviation 200 (0.4)(1-0.4) b. A normal distribution centered at 0.40 with standard deviation 200 (0.25)(1-0.25) С. A normal distribution centered at 0.40 with standard deviation 200…
Solve the following problems. Use the steps in conducting hypothesis tests.We are interested in whether the proportions of female suicide victims for ages 15 to 24 are the same for the whites and the blacks races in the United States. We randomly pick one year, 1992, to compare the races. The number of suicides estimated in the United States in 1992 for white females is 4,930. Five hundred eighty were aged 15 to 24. The estimate for black females is 330. Forty were aged 15 to 24. We will let female suicide victims be our population.
Answer A B C and please follow the instructions
T=5, T, = 10, T3 =15, with SS1 = 6, SS2=9, SS3 = 9, and EX² = 94. For this study, what is SSwithin?
How often do you go out dancing? This question was asked by a professional survey group on behalf of the National Arts Survey. A random sample of n1 = 95 single men showed that r1 = 23 went out dancing occasionally. Another random sample of n2 = 92 single women showed that r2 = 19 went out dancing occasionally. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value a small amount and thereby produce a slightly more "conservative" answer. (a) Do these data indicate that the proportion of single men who go out dancing occasionally is higher than the proportion of single women who do so? Use a 5% level of significance. List the assumptions you made in solving this problem. Do you think these assumptions are realistic? What is the level of significance? What is the value of the sample test statistic? (Round your answer to three decimal places.) (b) Compute a 90% confidence…
Which of the following is a source of variation: A) Materials B) Piece-to-piece C) Chance D) None of these
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If I flip a coin three times, what are the chances they're all heads? discrete math
In the prior presidential election, the average voter turnout in Miami was 57%. You think this will change in the next presidential election. Which is the alternative hypothesis? Ha: turnout = 57% Ha: turnout ≠ 57%
QUESTION 13 If approximately 1.5% of the people in a room with 200 people are left handed, find the probability that exactly 8 of these people in the room are left handed. Recall that lambda=np. Do not use the given formula for the Poisson Distribution, use the Poisson tables in the back of our text. Give your answer exactly as it appears in the table.
Need help with #19
QUESTION 1 A multiple-choice test involves 20 questions, with four choices for each answer. a. If you guessed the answers to all questions at random, what mark out of 20 would you expect to get? b. If you know the correct answer to eight of the questions, what is your expected score out of 20?

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