A survey posted on the web in a recent month asked respondents to provide a satisfaction rating regarding a certain Democratic politician's policies and their political affiliation. Of202 respondents, 83 were Democrats. A total of 107 respondents thought the current politician was doing better than his predecessor. A total of 73 respondents were both Democraticand voted that he was doing better. How many respondents were not Democrats and did not think he was doing better?There were respondents who were not Democrats and did not think he was doing better.(Type a whole number.)Ask my instructorPamums7541020=4 "'101√₁Vi1,30(0,0)MoreClear all43°F CloudyCheck answer400047:41 AM3/19/2023TARKXL

event A : democrat event B : think he was doing better n(A) = 83 n(B) = 107 n(A∩B) = 73 n(total) =…

Answered: A survey posted on the web in a recent…

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 vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner's rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner's education levels with the categorical responses some high school, high school graduate, some college, and college graduate. The sample data below are for owners who had recently purchased an automobile. Quality Rating Average Outstanding Education Some HS 35 45 HS Grad 20 30 45 Some College 25 20 50 30 College Grad Exceptional With two different methods, test to see if the proportions of Average are same between Some HS and College Grad. You must state the hypotheses, test statistics, p-value, and conclusion, etc. 60 90 65
A report just came out that stated that 22.9% of all Americans say that vanilla is their favorite ice cream, 23.3% say that chocolate is their favorite, 9.2% favor butter pecan, 8.9% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America. The table below shows the results of 935 of her patrons' ice cream selections. What can be concluded at the αα = 0.01 significance level? Complete the table by filling in the expected frequencies. Round your answers to the nearest whole number.Frequencies of Favorite Ice Cream Outcome Frequency Expected Frequency Vanilla 224 Chocolate 228 Butter Pecan 84 Strawberry 70 Other 329 What is the correct statistical test to use?Select an answer Goodness-of-Fit Independence Paired t-test Homogeneity What are the null and alternative hypotheses?H0:H0: Favorite ice cream and where the ice cream is purchased are independent. The distribution…
A company has 30 employees, including a director. The lowest salary among the 30 employees is $22,000. The director’s salary is $180,000, which is more than twice as much as anyone else’s salary. Decide for each of the following statements about the 30 salaries whether it is true, false, or you cannot tell on the basis of the information at hand. • The median salary is below $60,000.• The average salary is below $60,000.• If all salaries are increased by $1,000, that adds $1,000 to the average.• If the director’s salary is doubled, and all other salaries remain the same, that increases the average salary.• If the director’s salary is doubled, and all other salaries remain the same, that increases the median salary.• The standard deviation of the salaries is larger than $180,000
Solve.
Answer it correctly and explain well. I will rate accordingly.
Twenty-nine college students, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustworthy the face of Mitt Romney appeared, as represented in their mental image of Mitt Romney’s face. Ratings were on a scale of 0 to 7, with 0 being “not at all trustworthy” and 7 being “extremely trustworthy.” Here are the 29 ratings: 2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7 a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?
In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain university, while 14% with a Math SAT of less than 700 were admitted. Further, 38% of all applicants had a Math SAT score of 700 or more. What percentage of admitted applicants had a Math SAT of 700 or more? (Round your answer to the nearest percentage point.) %
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Matt E. Matic was applying for a job. To determine whether he could handle the job, the personnel manager sent him out to poll 100 people about their favorite types of TV shows. His data were as follows. 57 preferred comedies. 40 preferred variety shows. 42 preferred serious drama. 17 preferred comedies and variety programs. 15 preferred variety and serious drama. 18 preferred comedies and serious drama. 8 preferred all types. 5 did not like any of these TV show types. If you were the personnel manager, would you hire Matt on the basis of this survey? Why or why not?
fill blanks.
Do people who are interested and environmental issues visit museums more often than people who are not? And 2012, the general social survey asked 1495 people how interested they were in environmental issues, and how often they had visited a science Museum in the past year the following table presents the results. Very interested: none is 512, one is 137, more than one is 58. moderately interested: none is 463, one is 97, more than one is 31. Not interested: none is 166, one is 20, more than one is 11. Can you conclude that the number of visits to a science museum is related to interest in environmental issues? Use the a=0.05 level of significance and the p value method with the TI-84 plus calculator. State the null and alternative hypothesis.
A report just came out that stated that 23.8% of all Americans say that vanilla is their favorite ice cream, 20.9% say that chocolate is their favorite, 9.1% favor butter pecan, 8.2% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America. The table below shows the results of $55 of her patrons' ice cream selections. What can be concluded at the a = 0.05 significance level? a. Complete the table by filling in the expected frequencies. Round your answers to the nearest whole number. Frequencies of Favorite Ice Cream Outcome Frequency Expected Frequency vanilla 216 Chocolate 195 Butter Pecan91 Strawberry 92 Other 361 b. What is the correct statistical test to use? Select an answer V c. What are the null and alternative hypotheses? Но: O The distribution of favorite ice cream for customers at her shop is the same as it is for Americans in general. O The distribution of favorite ice cream for customers at her…

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