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- A recent poll of Ms. Vergara's 160 students revealed the following. They were asked if they did or did not study hard for finals. They were also asked if they were or were not proud of their final results. 115 students said they studied hard and 105 students said they were proud of their results. 20 students said they didn't study hard AND weren't proud of their results. What percentage of students studied hard OR were proud of their results? Use that same two-way table to help you.A. Floor effect and left skew B. Ceiling effect and right skew C. Ceiling Effect and left skew D. Floor effect and right skewThe Las Vegas Review-Journal (R-J) posts an article on their website reporting on a poll they conducted for the upcoming Senate election. Their poll asked likely Nevada voters who they intend to vote for. The results were: Catherine Cortez Masto with 45%, Adam Laxalt with 41%, 14% undecided, and they report that their poll has a +/- 3.5 percentage point margin of error. The article's headline is "Cortez-Masto Leads Laxalt by 4 Points." Is the R-J right? That is, can we be reasonably sure (95% confident) that Cortez-Masto really is ahead of Laxalt? if we had the raw data we could just load it into R and do a quick difference of means test, but we don't need the actual data to figure it out in this case. In your answer, address the following: (1) Is the R-J probably right that Cortez-Masto leads Laxalt? (2) how you came to that conclusion?
- I had experts in the probability and statistics section of bartleby try to help me with parts (a), (b), (c), (d), and (e) on this homework problem and they couldn't do it. Please don't send this problem to the probabilty or statistics section. Below the the homework problem is a data set in Excel that will be used for this problem. Make sure the answers are lengthy. Also, make sure your handwriting is neat and readable. Homework Problem Apple juice contains trace amounts of arsenic, measured in parts per billion(ppb). Over the past five years, I have been sampling apple juices and measuringtheir arsenic concentrations. You are being given a data set (the “Juice” sheet)containing the arsenic concentrations and the years in which I measured them.(You can assume that the experiment was conducted well, the sampling wasdone properly, etc.) a) Create a visualization that depicts the distribution of the concentrationdata, and describe that distribution. “Describe” goes beyond simplynaming…A union’s executive conducted a survey of its members to determine what the members felt the important issues to be discussed during upcoming negotiations with management. Results showed that 74% felt that job security was an important issue, while 65% felt that pension benefits were an important issue. Of those who felt that pension benefits were an important issue, 60% also felt that job security was an important issue. b). What proportion of the members felt that at least one of these two issues was important?In a class of 25pupil's their are 8individual who played in the hockey team.what percentage of class play in the hockey
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- The sports section of the East Mule Shoe Gazette runs a weekly question that readers can answer online. After the local university’s football squad was beaten by its rival for the forty-second straight season, the question was “Do you think that the coach needs to go?” Of the 182 people who responded, 89 percent said Yes. When people say that the newspaper poll is biased, they mean that: A) students may have different opinions than townspeople B)Repeated polls would give results that are very different from each other C)Repeated polls would miss the truth about the population in the same direction D) The question asked shows a preferance on a gender or racial basisA union’s executive conducted a survey of its members to determine what the members felt the important issues to be discussed during upcoming negotiations with management. Results showed that 74% felt that job security was an important issue, while 65% felt that pension benefits were an important issue. Of those who felt that pension benefits were an important issue, 60% also felt that job security was an important issue. What percentage of the members felt that at least one of these two issues was important?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%