In 2018, the Pew Internet & American Life Project asked 743 teens aged 13 to 17 several questions about their attitudes toward social media. The results showed that 602 say social media makes them feel more connected to what is going on in their friends' lives; 513 say social media helps them interact with a more diverse group of people; and 275 feel pressure to post content that will get a lot of likes and comments.Round your answers to four decimal places.a. Develop a point estimate of the proportion of teens aged 13 to 17 who say social media makes them feel more connected to what is going on in their friends' lives.[__________]b. Develop a point estimate of the proportion of teens aged 13 to 17 who say social media helps them interact with a more diverse group of people.[__________]c. Develop a point estimate of the proportion of teens aged 13 to 17 who feel pressure to post content that will get a lot of likes and comments.[__________]

Consider Pew's survey when 743 youths in the 13- to the 17-year-old age group were asked a number of…

Answered: In 2018, the Pew Internet & American…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Hayfever Farms is an 80‑acre hay farm in Colorado. Due to the legalization of marijuana production in the state, the owners are considering changing the farm's name to Blissful Acres and growing marijuana instead of hay. Use the information presented in the table to answer three questions. Number of acres MC $ MR $ (hay) MR $ (marijuana) 10 320 730 5,600 20 200 730 5,600 30 540 730 5,600 40 730 730 5,600 50 1,200 730 5,600 60 3,200 730 5,600 70 5,600 730 5,600 80 6,700 730 5,600 If they continue to grow only hay, how many acres should Hayfever Farms devote to growing hay in order to maximize profits? area devoted to hay:_______ acres If the owners decide to only grow marijuana, how many acres should Blissful Acres devote to growing marijuana in order to maximize profits? area devoted to marijuana:_______ acres Which outcome likely happens due to the legalization of marijuana production and consumption? The number of growers…
In the Disney movie Frozen, the Kingdom of Arendelle changes overnight from a warm, flower filled place to being completely frozen (the story takes place in July). Just after this change in weather, there is a scene where two characters visit a trading post. At the trading post one character (Kristoff) is looking to buy winter transportation equipment and eventually sell some ice. The other character (Anna) is looking to buy some winter clothes. A link to the scene can be found in the module. For this assignment, please show how this change in weather would likely effect the markets for winter transportation equipment, winter clothes, and ice (assume the ice would be used by people who want to cool drinks). Specifically, draw a new supply or demand curve for the products and identify new equilibrium quantity or supply if you think the change in weather would have an impact on any of those measurements. In the clip Kristoff calls Oaken a crook for charging higher prices than he…
AutoSave Off A Exam. gnele ouattara Go File Home O X Insert Draw Design Layout References Mailings Review View Help 只v * G Paste Font Paragraph Styles Editing Dictate Editor Reuse Undo Clipboard Files Styles s Voice Editor Reuse Files (2.b) Suppose we just studied the effect of schooling on incomes using data from the USA. Explain why it may be challenging to generalize the study results to India. R English (United States) O Focus le 110% Page 5 of 8 1437 words 6:43 PM ヘ令中 D 4/10/2022 delete 国 CE insert end F12 home prt sc F10 F11 F9 num backspace leck
Econometrics Thomas Eisensee and David Stromberg wanted to measure how much news coverage of a foreign disaster impacted the amount of disaster relief provided by the U.S. government. They argue that the simple relationship would be biased. Let X = Minutes of News Coverage and Y= Disaster Aid. Choose a variable X2 that could bias the simple relationship. This variable should impact the amount of coverage and impact the amount of aid for reasons other than purely news coverage. Eisensee and Stromberg introduce an instrument Z = During the Olympics. Explain how Z could satisfy the relevant and exogenous criteria. Explain how you could use Z to estimate the impact of X on Y free from X2 bias. Hint: you should mention two stages.
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Suppose you are interested in studying the effect of time spent in an SAT preparation course on actual SAT score. You propose the following regression of SAT score on hours spent in preparation for SAT and family income: Y = Bo + BiX + B2X2 + u Where Y = score on SAT X₁ = time spent in studying in an SAT preparation course X₂ = income of the student's family u = error term An important assumption in the regression model with two independent variables is that E(u|x₁,x₂)=0. Assume for simplicity that the only other relevant factor (contained in the error term) that affects Y is natural ability. That is, natural ability and u are essentially equivalent in your regression. In the context of your proposed regression, this assumption assumes which of the following?
In October 2015, amid rising fears about the security of credit card transactions, financial institutions and businesses made the transition to using chip cards. Unlike the quick swipe of a magnetic stripe on the back of traditional credit and debit cards, chip cards have to be left inside the terminal while the embedded chip verifies the transaction. While there is no consistent method for measuring transaction speed, news agencies report average chip speeds of anywhere from 8 seconds to 13 seconds. The switch to chip readers was precarious, with many businesses taping over the chip card slots in the terminals until the kinks were worked out. Even after a year, some businesses still could not process chips and continued to utilize the magnetic stripe for transactions. Financial institutions thought the additional security benefits of the chips would overshadow the added wait times. Yet a survey conducted by Harbortouch, a leading point-of-sale company, in 2016 showed that nearly four…
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5. Can i get help with this practice question i am working on.
Three researchers are evaluating taste preferences among three leading brands of cola. After participants taste each brand, the first researcher simply checks to see if participants can distinguish them reliably by labeling each cola as "same" or "different" from the others, by giving them the same or different letter or number code. The second researcher asks each participant to identify the most preferred, the second most preferred, and the least preferred. The third researcher asks each participant to rate each of the colas on a 10-point scale, where a rating of 1 indicates “terrible taste” and 10 indicates “excellent taste," with the assumption that the difference betweeen a rating of 4 and 6 is the same as the difference between a 6 and 8. Identify the scale of measurement used by each researcher. nominal; ordinal; interval interval; ordinal; nominal nominal; interval; ordinal ordinal; interval; ratio
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