(12) 6. Here is the headline of an MPR news story, "MPR News/Star Tribune poll: 56percent approve of Walz performance" Tim Pugmire | MPR News Feb 25, 2020.This story is from before the current COVID-19 crisis and we don't know how muchopinions might have changed recently.The poll of 800 registered voters was conducted by Mason-Dixon Polling andStrategy from Feb. 17-19. There were at least six other questions asked in the poll,ranging from questions on spending priorities to questions on mining and marijuanalegalization.Since there are many questions asked in the poll, we don't construct severalconfidence interval estimates for each proportion, we calculate the sampleproportions and report one margin of error for the entire poll or survey.If we want to make the margin of error smaller, what would we have to do?O Increase the sample size.O Decrease the sample size.O Nothing, since it can't be done.O Increase the original population's standard deviation.

Answered: (12) 6. Here is the headline of an MPR…

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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4
A poll in June 2020 found that 83% of American parents believe that virtual learning instead of in- person learning widens the equity gap for students. A later poll in October 2020 asked 1025 American parents if they believe virtual learning instead of in- person learning widens the equity gap for students, and found that 820 believe that yes, virtual learning instead of in-person learning widens the equity gap for students. Does this mean that the proportion of American parents, who believe that virtual learning instead of in-person learning widens the equity gap for students, has decreased? Test at the 10% significance level. State the hypotheses. Но: р (? На: р (? Calculate the sample proportion. Round to four decimal places. Calculate the test statistic. Round to two decimal places. Z = Find the p-value. Give to four decimal places. p-value = State your decision. Since the p-value is less than 0.1, fail to reject Ho. Since the p-value is less than 0.1, reject Ho. | Since the…
Approval 2008. Of all the post–World War II presidents,Richard Nixon had the highest disapproval rating near theend of his presidency. His disapproval rating peaked at 66% in July 1974, just before he resigned. This percent-age has been considered by some pundits as a high water mark for presidential disapproval. However, in April 2008,George W. Bush’s disapproval rating peaked at 69%,according to a Gallup poll of 1016 voters. Pundits starteddiscussing whether his rating was discernibly worse thanthe previous high water mark of 66%. What do you think?
4) You know that 70 percent of the subs at theme parks in the US are yellow. There are 220 subs in theme parks in the US. You are in a contest where you select sub names from a hat and record the name of the theme park sub. (No replacement ). You win a prize if you select a greater percentage of yellow subs than 90% of your many many competitors. What percentage of yellow subs do you need to select?
Suppose that a South African Broadcasting Corporation (SABC) official wants to conduct a survey in Limpopo to estimate, with 95% confidence, a support for the premier's strategies on economy within 3% error. If the official has initial estimate that 70% of the people in Limpopo support the economic strategies of the premier. How many people should SABC survey?
5. Suppose that 68% of all adults think that airplanes would be safer places if airline passengers were banned from carrying on board any luggage, including purses, computers, and briefcases. An opinion poll plans to ask an SRS of 1023 adults about airplane safety. The proportion of the sample who think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases, will vary if we take many samples from this same population. The sampling distribution of the sample proportion is approximately Normal with mean 0.68 and standard deviation about 0.015. Sketch this Normal curve and use it to answer the following question. Round to nearest tenth percent. What is the probability of getting a sample in which more than 70% think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases?
Please read the passage on Teens Cigarette and then answer the questions carefully to get the correct answers.
5. Websites like e-rewards give airline miles or other awards to members who fill out surveys online. Members must be invited by a company such as an airline to participate and once they are a member, they will receive invitations for surveys based on qualification criteria. Discuss an advantage and a disadvantages of this data collection method. Briefly explain your choice. Advantage: Disadvantage:
discuss 4 importance of the Gantt chart in decision making
the link to the data is given below. please help asap i will upvote!! https://drive.google.com/file/d/1ervh7Ki2Nd-Ly1SjtXyCm82i40M6sE5z/view?usp=sharing
Base on the same given data uploaded in module 4, will you conclude that the number of bathroom of houses is a significant factor for house price? I your answer is affirmative, you need to explain how the number of bathroom influences the house price, using a post hoc procedure. (Please treat number of bathrooms as a categorical variable in this analysis) Base on the same given data, conduct an analysis for the variable sale price to see if sale price is influenced by living area. Summarize your finding including all regular steps for your method. Also, will you conclude that larger house corresponding to higher price (justify)?
Can this all be completed with SPSS along with all of the steps as well please? Base on the same given data uploaded in module 4, will you conclude that the number of bathroom of houses is a significant factor for house sellprice? I your answer is affirmative, you need to explain how the number of bathroom influences the house price, using a post hoc procedure. (Please treat number of bathrooms as a categorical variable in this analysis) Base on the same given data, conduct an analysis for the variable sale price to see if sale price is influenced by living area. Summarize your finding including all regular steps (learned in this module) for your method. Also, will you conclude that larger house corresponding to higher price (justify)? Each question need to include a spss output.

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