Statistics :

15 1 point Dr. Baena wants to know whether people believe they are less likely than others to contract the flu are more hesitant to get the flu vaccine. To conduct this test, Dr. Baena randomly recruits 350 participants and measures their beliefs about contracting the flu and their hesitancy to get the flu vaccine. Dr. Baena then compares the mean vaccine hesitancy scores between participants. Dr. Baena wants to know whether the difference in means is likely to reflect an actual difference in the impact of beliefs about contracting the flu on vaccine hesitancy or whether the difference reflects a chance finding. What kind of statistics does he need to calculate? descriptive quasi-statistical observational inferential 16 1 point Dr. Curious is interested in how much cash the average student in her class carries. One day, she asks the class of 20 students to tell her how much cash they each have in their pockets. She discovers that the students have a mean of $10. A lot of the students have small amounts of cash: $.27, $2.02, $5.53, $8.00, and so on. A few students have lots of cash- one has around $300 and a second has $550. In order to better understand the distribution of how much cash her students have, Dr. Curious creates a histogram to show the frequency distribution of the data. Which is most likely the distribution of her data? O The data has a positive skew. The data is probably bimodal, so it is difficult to describe the skew. The data has a negative skew. The data is normally distributed. 17 1 point The Strategic Homeland Intervention Enforcement and Logistics Division (S.H.I.E.L.D.) really wants to know which of its Avengers causes the most damage when called into a mission. They go over of hours of footage from missions conducted in the past five years and calculate how much property damage each hero was responsible for. S.H.I.E.L.D. determines that on average the Hulk causes $50 billion in damages, Iron Man causes $30 billion in damages, and Captain America causes $7 billion. This kind of study is: O observational experimental O quasi-experimental there is not enough information to answer this