Americans' trust in government and the media has generally been on a downward trend since pollsters first asked questions on these topics in the second half ofthe twentieth century. Trust in government hit an all-time low of 14% in 2014, while trust in the media bottomed out at 32% in 2016. The bar graph shows thepercentage of Americans trusting in the government and the media for five selected years. Use this information to answer parts a-c.a. Use the information in the graph to estimate the yearly loss in the percentage of people trusting in government.The yearly loss in the percentage of people trusting in government is 36 %.(Round to the nearest tenth as needed.)b. Write a mathematical model that estimates the percentage, P, of people trusting in government x years after 2003.The mathematical model P = estimates the percentage, P, of people trusting in government x years after 2003.(Use integers or decimals for any numbers in the expression. Use the answer from part (a) to answer this part.)c. If the trend shown by the data continues, use the mathematical model from part (b) to project the percentage of people trusting in government in 2025.The model predicts the percentage of people trusting in government will be % in 2025.(Type an integer or decimal rounded to the nearest tenth as needed.)Percentage70-60-Trust in mediaTrust in Goverment5447443931wwww19182007 2011 2015 201950-40- 3530-20-10-20031642

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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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C8. According to the Pew Research Center (2015), recent immigrants are better educated than earlier immigrants to the United States. The change was attributed to the availability of better education in each region or country of origin. The percentage of immigrants 25 years of age and older who completed at least high school is reported in this table for 1970 to 2013. Write a statement describing the change over time in the percentage who completed at least a high school degree. 1970 1980 1990 2000 2013 Mexico 14 17 26 30 48 Other Central/South America 57 53 60 66 Asia 75 72 75 82 84 48 68 81 87 95 Europe 36 48 52 58 72 Caribbean 81 91 88 85 85 Africa Source: Pew Research Center, Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065, 2015. Retrieved from https://www.pewresearch.org/hispanic/2015/09/28/modern- immigration-wave-brings-59-million-to-u-s-driving-population-growth-and-change-through-2065/ 52
A retailer wants to see if a red "Sale" sign brings in more revenue than the same "Sale" sign in blue. The data below shows the revenue in thousands of dollars that was achieved for various days when the retailer decided to put the red "Sale" sign up and days when the retailer decided to put the blue "Sale" sign up. Red: 2.7, 2.6, 1.1, 4.2, 2.6, 3.4, 2.3, 2.9, 4, 2.6 Blue: 2.2, 1, 2.8, 1.6, 0.6, 0.9, 1, 1.7, 3.4 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.01 level of significance level of significance? b. The test statistic t î = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.)
2. The number of public branch libraries in the United States for several years is given in the table: Year Public Library Branches G500 1994 6223 1995 6172 1996 Branches 6205 1997 6332 1998 6435 a. Graph the data b. Find an equation for a model of these data. Year b. Using your model, estimate the number of branch libraries in 2000 c. Use the graph to estimate in what year(s) there are 6500 branch Libraries
YouTube G Create EStream You... e Left:1:15:25 Tahani Alala: Attempt 1 In a Pyramid lake, people go to catch really large cutthroat trout. The following table compares the data number of hours per fish caught fishing from the shore and number of hours per fish caught using a boat. The following data are paired by month from October through April. Oct. Nov. Dec. Jan. Feb. March April B: Shore 1.6 1.8 2.0 3.2 3.9 3.6 3.3 A: Boat 1.5 1.4 1.6 2.2 3.3 3.0 3.8 d3DB- A 0.1 0.4 0.4 1.0 0.6 -0.5 Use a 1% level of significance to test if there is a difference in population mean hours per fish caught using a boat compared with fishing from the shore. Given that d = 0.37 and Sd = 0.47. Solution: Step 1: Stating hypothesis: Null Hypothesis; = Pl : 0H 五 ily f7 f8 f12 61 DDI |44 * 6. 3. %3D 8. 1/2 1/4 3/4 >>
Give an example of a nominal variable for people in recovery for substance abuse
3. Determine if the data is linear or exponential and find a function that models the data: -4 -2 0. 2 4 y 0.625 2.5 10 40 160
Complete the following statements. In general, % of the values in a data set lie at or below the median. % of the values in a data set lie at or below the third quartile (Q3). If a sample consists of 900 test scores, quartile (Q2). If a sample consists of 900 test scores, quartile (Q1). of them would be ot or below the second of them would be ot or above the first
Experimental or Observational: A group of students is interested in knowing if the number of times they can sink a basketball is related to the color of the basketball. The students shoot a series of baskets and record their success using a regulation colored basketball. They then switch to a blue colored basketball and shoot the same series of baskets. .
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.

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