Week 4 quiz questions 16-22
location has nothing to do with team preference, the probability that the data gathered Question 16 was the result of chance is calculated to be 0.03. What is the correct interpretation of this calculation? Researchers want to study whether or not a fear of flying is related to a fear of heights They surveyed a large group of people and asked them whether or not they had a fear of flying and whether or not they had a fear of heights. The data are shown in the Select the correct answer below. contingency table below. What is the relative risk of being afraid of heights for those who are afraid of flying? Round your answer to two decimal places. More people from rural areas want the defending champions to win the game. Afraid of heights Not afraid of heights Total Exactly 216 out of every 374 urban residents want the defending champions to win the game. Afraid of flying 76 33 109 C The results are statistically significant at the 0.05 level of significance in showing that the 370 452 proportion of people in rural areas who want the defending champions to win the game is Not afraid of flying 82 different than the proportion of people in urban areas. Total 158 404 561 The data is not statistically significant at the 0.05 level of significance in showing that the proportion of people in rural areas who want the defending champions to win the game is different than the proportion of people in urban areas. Provide your answer below: Question 21 Question 18 Find the mode of the following amounts (in thousands of dollars) in savings accounts of A student wants to know his average homework grade for the first half of his math class. randomly selected people aged 25-30. There were 7 homeworks in the first half of the class, and his grades out of 100 are 8,6,8,7,2,2,2,4,4,4,4,7 given by 100,90,95,89,92,85,95. Provide your answer below: What is the population mean of his homework grades? Round your answer to the nearest tenth. Provide your answer below: Question 22 A deck of cards contains red cards numbered 1,2,3,4,5,6, blue cards Question 20 mambered 1,2,3,4.5 and green cards numbered 1,2,3,4,5,6,7,8. If a single card is A poll was conducted during the final game of the basketball season to determine picked at random, what is the probability that the card is red? whether fans wanted to see the defending champions win the game or the challenging team win the game. From the poll, 216 of the 374 residents sampled from urban areas Provide your answer below: want the defending champions to win the game. In more rural areas, 304 of the 466 residents polled want the defending champions to win the game. Assuming
