Question 1 5 pt Statistics would be needed to support which of the statements below? O Mr. Smith is 33 years old. O There are 180 days of school this year. O Math grades have fallen consistently since the first marking period. O Pizza was offered for lunch last Friday. Question 2 5 pt Choose the data that is quantitative. O Number of texts sent daily O Cat breeds O Area codes O Makes of vehiclesQuestion 3 5 pts Suppose you want to conduct a survey of benet packages available in private businesses in the Research Triangle. You want a sample size of 100. Identify the sampling method. Sort each business by type in the Research Triangle Directory and then assign each business in a given type a number. Randomly select 10 businesses from each type to sample. 0 Simple Random Sample 0 Systematic Sample 0 Stratied Sample 0 Convenience Sample Question 4 5 pts Suppose you want to conduct a survey of benet packages available in private businesses in the Research Triangle. You want a sample size of 100. Choose the situation below that represents a cluster sample. 0 Send a team of ve research assistants to Main Street in downtown Raleigh. Let each assistant select a block or building and interview an employee from each business found. Each researcher can have the rest of the day off after getting responses from 20 different businesses. 0 Use the area codes to divide the area into regions. Pick a random sample of 1 area code in the area and then include all the businesses with the given area code. 0 Use the Research Triangle Directory. Number all the businesses. Select a starting place at random, and then use every 50th business listed until you have 100 businesses. 0 Group the businesses according to type: medical, shipping, retail, manufacturing, nancial, construction, restaurant, hotel, tourism, other. Then select a random sample of 10 businesses from each business type. Question 5 5 p A student satisfaction survey was completed with respect to the middle school cafeteria. Two methods were discussed. Decide which method is better and why. Method A: The st 40 students to walk into the cafeteria were surveyed and 70% stated they were satised with the food in the cafeteria. Method B: 65 students, from a list of all students in the school, were selected using a random digit table. A survey was conducted and 55 percent said they are satised with the food in the cafeteria 0 Neither method is acceptable because random selection was no used. 0 Method B is better because we will sample students that actually eat in the cafeteria 0 Method B is a better method because it includes random selection 0 Both methods are the same and will result in similar data Question 6 5 pts True or False. The numbers in the wheat column represent relative frequencies. How do you know? Wheat Barley Year (tonnes per hectare) (tonnes per hectare) 1270 0.521734429 0.800721109 1271 0.470964263 0.911143435 1272 0.684571094 0.854774541 1273 0.482707332 0.804971591 1274 0.442802072 0.733861098 1275 0.788229498 1.194795703 1276 0.481701551 0.687792364 1277 0.668751621 0.851143441 1278 0.845401378 0.946865988 1279 0.482155455 0.401687919 1280 0.502997902 0.55060883 1281 0.545868682 0.900803761 1282 0.562100662 0.696269861 1283 0.38802851 0.704414303 1284 0.529111692 0.760523054 1285 0.543643882 0.692801772 1286 0.53657936 0.777593873 Our World In Data (dataset constructed by Hannah Ritchie & Ruby Mittal) CC By. 4.0Our World In Data (dataset constructed by Hannah Ritchie & Ruby Mittal) CC By_ Q n? 0 False. Relative frequency measures percents of the whole, so the decimals should add up to 1. 0 True. Relative frequencies are integers. 0 True. Relative frequencies are percents. 0 False. Relative frequencies are integers. What types of data are represented in the following graphical display? \\'t'cckly Work Hours n Wort hours of full -time production workers (male and femalel in non-agricultural activities. 60h 50 h 0 Add country L any _-__. .J Italy [lelg'un' frame 40h 30 h 20 h 10h O h . . . . . . . . 1870 1880 1900 1920 1940 1960 1930 2000 .'uuxnzv Hub\" mall E. Him I' IPF-T'} Cl" H'I' Work Hours from Our World in Data CC by E e 0 Time and Work hours are both continuous quantitative variables. 0 Time and Work hours are both continuous qualitative variables. 0 Time and Work hours are both discrete qualitative variables. 0 Time and Work hours are both discrete quantitative variables. Which of the following answer choices is the most accurate description of the graph shown below? Jobs Lost by Quarter 15 20 Jobs lost (millions) 10 Doc '07 June '08 Doc '08 June '09 Doc '09 Junc'10 Graph by B. Singleton at Google Draw Source: bls.gov O The graph is displaying the jobs lost as relative frequencies 0 Only jobs were lost in 2010. O The graph is misleading because the x-axis in not correctly spaced out. 0 From December '07 to December '09 the jobs lost tend to rise. What would be an appropriate title for the following graph? 15 -10 -5. Test Grades 60 80 100 Graph by B. Singleton at desmos.com https://www.desmos.com/calculator/uoqaxypc5h O Test Grades O Percentages for Math O Test Grades in Math Class O US Math Grades