In 2012 in the United States, most electricity was generated from coal (37%), natural gas (30%), or nuclear power plants (19%). Hydropower accounted for 7% of the total electricity produced; other renewable sources such as wind or solar p for 5%. Other nonrenewable sources (such as petroleum) made up the remaining 2%. Complete parts a through d below. a. Display the information in a bar graph. The bars, from left to right, represent coal, natural gas, nuclear power, hydropower, wind or solar, and other nonrenewable sources. Choose the correct graph below. OA. Q O B. Q 40 30- 20- LI 20- Q 10- 10- 0- 0- Electricity Source Electricity Source OC. Q Q 40 40 Q ..... 20- Electricity Source Electricity Source b. Which is easier to sketch relatively accurately, a pie chart or a bar chart? OA. A bar chart easier because the bars are always in decreasing order of category percentages, which makes comparisons of categories easier. OD.

The bar graph below shows the percentage of people having different views on college education. In 2000, 24% of adults viewed a college education as essential for success. For the period 2000 through 2010, the percentage viewing a college education as essential for success increased on average by approximately 2.5 each year. If this trend continues, by which year will 64% of all adults view a college education as essential for success? 64% of adults will view a college education as essential for success by the year Changing Attitudes Towards College 60- A college 50 educato is available for qualified students. is essential for SUccess. 으 404 30- 10-24% 49% 35% 31% 0- 2000 2010 2000 2010 Help Me Solve This Textbook Get More Help - Clear All Skill Builder Check Answer 9:55 PM 73°F 9/13/2021 P Type here to search backspace 24 4. 7. 6. E R K pause Percentage

FIND THE ANSWERS FOR B-2 and C. A survey found that Massachusetts residents spent an average of $861.75 on the lottery, more than three times the U.S. average. A researcher at a Boston think tank believes that Massachusetts residents spend less than this amount. He surveys 100 Massachusetts residents and asks them about their annual expenditures on the lottery. (You may find it useful to reference the t table.)   Click here for the Excel Data File a. Specify the competing hypotheses to test the researcher’s claim.multiple choice 1   H0: μ ≥ 861.75; HA: μ < 861.75   b-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.) -0.863 b-2. Find the p-value.multiple choice 2 p-value < 0.01 0.01  p-value < 0.025 0.025  p-value < 0.05 0.05  p-value < 0.10 p-value  0.10 c. At α = 0.10, what is the conclusion?multiple choice 3 Reject H0; there is insufficient evidence…

Many countries, especially those in Europe, have significant gold holdings. But many of these countries also have massive debts. The following data show the total value of gold holdings in billions of U.S. dollars and the debt as a percentage of the gross domestic product for nine countries (WordPress and Trading Economics websites, February 24, 2012). Click on the datafile logo to reference the data. Country Gold Value Debt China 63 17.7 France 146 81.7 Germany 203 83.2 Indonesia 33 69.2 Italy 147 119 Netherlands 36 63.7 Russia 50 9.9 Switzerland 62 55 U.S. 487 93.2   Using the entire data set, develop the estimated regression equation that can be used to predict the debt of a country given the total value of its gold holdings. y^ =   (to 4 decimals)   (to 4 decimals) Gold Value Suppose that after looking at the scatter diagram in part (a) that you were able to visually identify what appears to be an…

The boxplots show data for state and local community expenditures on hospitals and highways. Hospitals Estimate Q1, Q2, and Q3 for hospital and highway spending. Highways Billions of Dollars

An assembly line consists of 26 tasks grouped into 7 workstations. The sum of the 26 task times is 153 minutes. The largest assigned cycle time is 24 minutes. The efficiency of this line is O A. 85.00%. O B. 91.07% O C. 52.46% O D. 3.43% O E. 6.38%

According to the United States Department of Agriculture (USDS), people living in the U.S. consumed 211,219,000,000 pounds of dairy in 2018. Of the amount consumed, 12,408,000,000 pounds were in the form of cheese.* Part A: Based on the information above, what percentage of diary consumed in 2018 was from cheese? Round to the nearest tenth of a percent. 58.7% O 17.0% O 5.9% O 2.5% Part B: Of the cheese consumed in 2018, 5,036,000,000 pounds were considered "American cheese," defined by the USDS as Cheddar, Colby, Monterrey, and Jack cheese.* What percentage of dairy consumption was from American cheese? Round to the nearest tenth of a percent. 40.5% 49.1% 02.4% 0 2.3%

Solve the problem. At the Jumping Jack cookie factory, quality assurance inspectors remove broken or otherwise defective cookies from a moving conveyor belt prior to packaging. Based on past studies, the plant manager knows that the inspectors eliminate 98% of the defective cookies at a conveyor belt speed of 9 feet per minute. As the belt speed increases, the factory can produce more cookies per hour, but at the cost of lower quality of the packaged product. Inspectors collect only 60% of defective cookies at a belt speed of 18 feet per minute. QA Inspector Efficiency Inspector efficiency, % defective cookies eliminated 100 90 60 |(9.98) 50- 10 11 12 13 14 15 Belt speed, feet per minute (18,60) 16 17 18 a. Find an equation of the line through the given points. Write the equation in slope-intercept form. Round the slope and y-intercept each to 1 decimal place. b. Use the equation from part (b) to predict the efficiency of the inspectors at a belt speed of 15 feet per minute. Round to…

A biologist gathered the following information about deer populations in a national park area.   Juvenile (age ≤ 2 years) Adult (age > 2 years) Total Male 23 171 194 Female 112 935 1044 Total 135 1103 1238 The biologist made the calculation shown below. Which question was she trying to answer? 23 ÷ 194   a. What percentage of the male deer are juveniles?   b. What percentage of the juvenile deer are males?   c. What percentage of the total deer are juvenile males?   d. What percentage of the total deer are males?

A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?