At a certain college 40% of the students are male, and of those, 15% smoke cigarettes. What is the percentage of the student body who are male smokers?

Suppose a survey conducted in 2012 asked a group of adults from a certain country whether they drink seltzer water. Of the 3,062 people who responded, 22.8% said they drink seltzer water. Complete parts a through d. a. Identify the sample. What is the sample? A. The group of adults in the particular country who did not respond to the survey B. The 22.8% who reported they drink seltzer water C. The 3,062 people who responded D. All adults in the particular country b. Identify the population. What is the population? A. All of the adults in the world B. The 22.8% of respondents in the survey who reported they drink seltzer water C. All of the adults in the particular country D. The 3,062 people who responded to the survey

c) A major baseball league season came to an abrupt end in the middle of sporting season in 1999. In a poll of 600 adults, 174 blamed the players for the strike, 204 blamed the owners and the rest held various other opinions. Estimate the difference between the proportion of adults who blame players for the strike and the proportion of adults who blame the owners and interpret what the difference implies. What percent the adults have varying opinions on the strike.

In a statistics activity, students are asked to spin a penny and a dime and determine the proportion of times that each lands with tails up. The students believe that since a dime is lighter, it will have a lower proportion of times landing tails up compared with the penny. The students are instructed to spin the penny and the dime 30 times and record the number of times each lands tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times. Let pp = the true proportion of times a dime will land tails up and pp = the true proportion of times a penny will land tails up. The P-value for this significance test is 0.296. Which of the following is the correct conclusion for this test of the hypotheses H Pp-Pp=0 and H, Po-Pp 0.05. There is sufficient evidence that the true proportion of times a dime will land tails up is significantly less than the penny. O The student should reject the null hypothesis since 0.296 > 0.05. There is insufficient…

Approximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and have Brain Damage?

Approximately 29% of music lovers like Country Music. Of those who do, 96% do not have mild brain damage. What percent of music lovers like Country and do not have Brain Damage?

Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5

Indiana has a population of about 7 million people and Ohio about 12 million. Is it possible for there to be a poll where over 50% of Hoosiers say "yes", over 50% of Ohioans say "yes", but over 50% of all residents of both states say "no"? If no, explain why not. If yes, give an example of how that could happen.

In a town of 3,000 people, 600 are over 50 years of age and 400 are left-handed. It is also known that 15% of all left-handers in the town are over 50 years of age. How many people in the town are left-handed, over 50 years of age, or both?

If a coin is flipped 225 times and the number of Hs is 75. Compute the proportion of Hs. Round to three places.