If Kyle were to randomly select a girl to explain why she likes the sport chosen, what is the probability that he will pick a girl who likes football?
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- For its "music 360 "survey, nielsen co asked teenagers and adults how each group has listened to music in the past 12 months. Nearly two thirds of U.s teenagers under the age of 18 say they use google inc's video sharing site to listen to music and 35% of the teenagers said they use pandora media Inc's custom online radio service( the wall street journal, august 14, 2012). Suppose 10 teenagers are selected randomly to be interviewed about how they listen to music.a. is randomly selecting 10 teenagers and asking whether or not they use pandora media inc's online service a binomial experiment?b. what is the probability that none of the 10 teenagers use pandora media inc, online radio service?c. what is the proabbility that 4 out of the 10 teenagers use pandora media inc online radio service?d. what is the probability that at least 2 of the 10 use pandora media online radio service?Each of three supermarket chains in the Denver area claims to have the lowest overall prices. As part of an investigation study on supermarket advertising, a local television station conducted a study by randomly selecting nine grocery items. Then, on the same day, an intern was sent to each of the three stores to purchase the nine items. From the receipts, the following data were recorded (more question in picture)A pharmeceutical company tests the effectiveness of a new drug used to treat migraines. The company identifieds 500 females ages 25 to 45 years old who experience migraines. They are randomly assigned into two groups, each of size 250. One group is given the drug, the other group is given a pill that looks identical to the drug pill but is inert (doesn't do anything to the body). The prescribing doctors do not know which patients receives the drug and which patients receive the inert pill. At the end of the study, 62% of women who received the drug experienced reduced symptoms, whereas 24% of women who received the inert pill experienced fewer symptoms. From this, the company concluded that 62% the drug has a 62% chance of improving symptoms for women aged 25-45 with migraine. is the number 62% a parameter or statistic?
- An advertising firm wanting to target people with strong desires for success conducted astudy to see if such people differed in the types of television shows they watched. Randomlyselected participants recorded the shows they watched for a week, then their desire for successwas assessed, and finally they were divided into two groups. Low Success seekers watched 8comedies, 15 romances, 6 documentaries, 13 dramas, and 3 news shows. High Success seekerswatched 3 comedies, 3 romances, 9 documentaries, 7 dramas, and 8 news shows. Using thisdata answer the following: State the populations and hypotheses Create a table for the data using SPSS Conduct a Chi-Squared for independence test using the SPSS program and post outputfile. State the results using the proper APA format. Is the distribution of type of shows watched different for participants having high andlow desires for success?A nutritionist randomly divided 15 cyclists into three groups of 5 cyclists each. Cyclists in the first group were given vitamin supplements, which they took with their meals for the next three weeks. The second group was instructed to eat certain types of high-fiber whole grain cereals for the next three weeks. Cyclists in the third group ate the same way they normally eat. After three weeks, each cyclist rode 6 miles, from which the following times were recorded: Vitamin group 15.6 16.4 17.2 15.5 16.3 Fiber group 17.1 16.3 15.8 16.4 16.0 Control group 15.9 17.2 16.4 15.4 16.8 Is the data consistent with the hypothesis that vitamin supplements or fiber cereals do not affect the speed of cyclists? Use a 1% significance level.A local country club has a membership of 600 and operates facilities that include an 18-hole championship golf course and 12 tennis courts. Before deciding whether to accept new members, the club president would like to know how many members regularly use each facility. A survey of the membership indicates that 60% regularly use the golf course, 48% regularly use the tennis courts, and 10% use neither of these facilities regularly. What percentage of the 600 use at least one of the golf or tennis facilities? Select one: A. 98% B. 90% C. 18% D. 10%
- Globally, 35% of all ridged brittleshell tortoises have spots on their shells. A herpetologist in Citition collects a sample of 38 ridged brittlesell tortoises and finds that 16 of them have spots on their shells. The herpetologist would like to test the claim that the proportion of ridged brittleshell tortoises in Cititon with spots on their shells is greater than 35%. The herpetologist ends up rejecting the null hypothesis. If the actual proportion of ridged brittleshell tortoises in Cititon with spots on their shells is 41%, then what type of error, if any, has occurred? In the problem above, what is the test statistic?The table below contains data from a study of two airlines - Sunshine Airlines & Comfort Airlines - which fly from BWI to Shore City, FL. If one Airline is selected, find P (on time and Comfort Airlines). Number of Flights Arriving on Time Number of Flights Arriving Late Sunshine Airlines 33 5 Comfort Airlines 43 6for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music in the past 12 months. Nearly two-thirds of U.S. teenagers under the age of 18 say theyuse google Inc.’s video-sharing site to listen to music and 35% of the teenagers said they usePandora Media Inc.’s custom online radio service (the wall street Journal, August 14, 2012).Suppose 10 teenagers are selected randomly to be interviewed about how they listen to music.a. Is randomly selecting 10 teenagers and asking whether or not they use Pandora MediaInc.’s online service a binomial experiment?b. what is the probability that none of the 10 teenagers use Pandora Media Inc.’s onlineradio service?c. what is the probability that 4 of the 10 teenagers use Pandora Media Inc.’s online radioservice?d. what is the probability that at least 2 of the 10 teenagers use Pandora Media Inc.’sonline radio service?
- for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music in the past 12 months. Nearly two-thirds of U.S. teenagers under the age of 18 say theyuse google Inc.’s video-sharing site to listen to music and 35% of the teenagers said they usePandora Media Inc.’s custom online radio service (the wall street Journal, August 14, 2012).Suppose 10 teenagers are selected randomly to be interviewed about how they listen to music.a. Is randomly selecting 10 teenagers and asking whether or not they use Pandora MediaInc.’s online service a binomial experiment?b. what is the probability that none of the 10 teenagers use Pandora Media Inc.’s onlineradio service?c. what is the probability that 4 of the 10 teenagers use Pandora Media Inc.’s online radioservice?Of the 328 patients that completed the survey last year, 211 of them claimed to be returning patients. Name the population and the sample in the survey above.A study claims that the combination of vitamin C with vitamin E is more effective for preventing the flu than vitamin C alone. In the study, a group of researchers studied 1072 subjects. The subjects were randomly assigned to one of three study groups. The first group of 410 subjects were instructed to take 600 mg daily of vitamin C. The second group of 358 subjects were instructed to take 600 mg of vitamin C and 200 IU of vitamin E daily. The third group of 304 subjects were instructed to take 600 mg of vitamin C and 400 IU of vitamin E daily. The incidence of flu over a season was recorded. All subjects knew which treatment they were receiving. The study reported that 300 subjects in each group self-reported no flu for the season, so the vitamin E does not help fight the flu. This statement is false because:• not all groups have the same number of subjects.• not all the subjects took vitamin C.• the amount of vitamin C was different. It would be better to show the results…
