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- The percentage of people in the population suffering from a certain disease is 32%. There is a test to detect the disease that is quite accurate. Of the people who have the disease and who undergo the test, it is indicated that 2% of them do not have the disease. Of the people who do not have the disease and who undergo the test, 2% of them are reported to have the disease. Suppose a person takes the test and indicates that they have the disease. Find the probability that the person does have the disease. Round your answer to two decimal places.A pharmacist is concerned with recent rise in narcotic prescriptions such as Percocet (Oxycodone-Acetaminophen) and Vicodin (Hydrocodone Bitartrate and Acetaminophen), because unwitting patients could take Tylenol (Acetaminophen) too.Too much acetaminophen can result in permanent liver damage and even death! To check, the pharmacist counted the last 100 prescriptions she filled to see if more than 30% of all prescriptions involved either Percocet or Vicodin, which are both considered narcotics. As she checked each prescription, she marked down 1 = "Narcotic" or 0 = "Non-narcotic". %D As it turns out, 41 were for Percocet or Vicodin and 59 were not. Estimate with 95% confidence the proportion of the sample prescriptions that are for narcotic pain killers: .41 +.0964 .41 + .0809 30 + .0809 .30 +.0964Of the 500 students in one dorm, 300 have engaged in binge drinking, 150 have engaged in social misconduct, and 55 have engaged in both binge drinking and social misconduct. For the students in this dorm, are the characteristics of engaging in social misconduct and binge drinking independant or dependant of each other? Justify answer.
- When two variables covary, the a. variables are related to each other b. variables tend to change together have something in common with each other c. variables are causally related d. relationship between the variables is spuriousBased on long experience, an airline found that about 4% of the people making reservations on a flight from Miami to Denver do not show up for the flight. Suppose the airline overbooks this flight by selling 267 ticket reservations for an airplane with only 255 seats.Please Help ASAP!!!!
- Phoenix is a hub for a large airline. Suppose that on a particular day, 8,000 passengers arrived in Phoenix on this airline. Phoenix was the final destination for 1,600 of these passengers. The others were all connecting to flights to other cities. On this particular day, several inbound flights were late, and 410 connecting passengers missed their connecting flight and were delayed in Phoenix. Of the 410 who were delayed, 85 were delayed overnight and had to spend the night in Phoenix. Consider the chance experiment of choosing a passenger at random from these 8,000 passengers. Calculate the following probabilities. (Round your answers to three decimal places.) (a) Calculate the probability that the selected passenger had Phoenix as a final destination. (b) Calculate the probability that the selected passenger did not have Phoenix as a final destination. (c) Calculate the probability that the selected passenger was connecting and missed the connecting flight. (d) Calculate the…A shoe has twelve eyelets. A shoelace can go through each eyelet in two different ways: one way going in/toward the shoe, and another way coming out/away from the body of the shoe through the eyelet away from the shoe. After we get the shoelace through an eyelet, we must put the shoelace through a different eyelet (in/toward or out/away from the shoe), until the shoelace passes through all twelve eyelets once, and no more than once. How many (different) ways are there to tie the shoelace to the shoe in this procedure?Is there a link between dark chocolate and weight loss when compared to milk chocolate? A nutritionist gathers 60 people, selected at random, then randomly assigns half of the group to eat a single dark chocolate bar after dinner each night and the other half to eat a single milk chocolate bar after dinner each night for 6 months. Everyone is to keep track of the other food they eat in an app provided. The nutritionist then compares each person’s weight after the 6 months to their weight before eating the different chocolates accounting for the other calories consumed. 12) What type of study does this describe? a) Survey b) Observational study c) Experimental study
- People come to relationships with different attachment styles that partially stem from the attachments they experienced with the adults raising them and partially due to experiences in other relationships in their lives. Those who have what is known as “secure” attachments are comfortable with their partners emotions, can help soothe, and make movements towards the other person in a responsive way. Among a group of 10 individuals rated as having a secure attachment style, a researcher wanted to know if, as they were first being acquainted with another person, the amount of self-disclosure made them like their person more. The data is listed in Table 6 below. Test the hypothesis at an alpha of 0.05 (where increasing scores mean higher disclosure and higher liking). If you knew the new person you are about to go on a date with had a self-disclosure rating of 4, what would you predict your likeability score would be (provide the full regression formula as well as the response)? -use…Certain app allows you to order from different types of cuisine. According with the app's records 23% of the orders are to an American food restaurant, 38% to an Asian food restaurant, 17% to a Mexican food restaurant, 6% to a Dessert place, and the rest are to other types of restaurants. Assume that incoming orders are independent of each other.At a carnival, an individual can win a prize by choosing a rubber duck from a pond with "Win" written on the underside of the duck. There are a total of eight ducks with "Win" written on the underside of the duck, and there are 17 ducks with "Lose" written on the underside of the duck. After each pick, if a prize is won, the duck is replaced in the pond. If a prize is not won, then the duck is again placed back into the pond. If an individual makes four picks, what is the probability the individual will win a prize exactly one time? (4) (0.32) (0.68) 1! 4! (0.32)¹ (0.68)³ O2(0.32)(0.68) (0.32) (0.68)³