A TV report conducted a survey of 978 people in New York City and found that 38% of the population believe that the Yankees will miss the playoffs this year. In the accompanying dialogue, the reporter states, we are 92% confident that the true proportion of people in New York City who believe that the Yankees will miss the playoffs this year lies between 34% and 42%. What does 92% represent in the report? 1) a confidence level 2) a confidence interval 3) a margin of error 4) a statistic 5) a parameter

A college professor would like to estimate the proportion of students who pull an "all-nighter," meaning they study all night for an upcoming exam. She selects a random sample of 100 students from her large college and finds that the 99% confidence interval for the true proportion of students who pull an all-nighter is 0.48 to 0.62. Which of these statements is a correct interpretation of the confidence level? O Approximately 99% of all students have pulled an all-nighter. O There is a 99% probability that the true proportion of all students who pull an all-nighter is between 0.48 and 0.62. If many random samples of size 100 are selected from all students at this college, approximately 99% of the intervals would capture the true proportion who pull an all-nighter. C Approximately 99% of the sample proportions of students who pull an all-nighter, based on random samples of size 100 from the population of all students at this college, will fall between 0.48 and 0.62.

A political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each person was asked who they plan on voting for in the 2024 presidential election. 110 said they plan on voting for Candidate A, 185 said they plan on voting for Candidate B, and 15 were unsure or plan to vote for another candidate. The researcher wants to construct a 95% confidence interval for the proportion of all registered voters in Orlando who plan to vote for Candidate B. What is the point estimate? Round final answer to 3 decimal places.

According to a poll, 81% of California adults (410 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California.What is a point estimate for the true population proportion?

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A TV report conducted a survey of 908 people in Phoenix metro area and found that 28% of the population believe that the suns will win the NBA finals next year. In the accompanying dialogue, the reporter states, we are 94% confident that the true proportion of people in Phoenix metro area who believe that the suns will win the NBA finals next year lies between 25% and 31% . What does 28% represent in the report? A. a confidence level B. parameter C. a statistic D. a confidence interval E. a margin of error

A survey collected data on attitudes toward the quality of customer service in retail stores.  The survey found that 270 of the 750 American adults sampled felt that customer service is better today than it was two years ago. We wish to develop a 94% confidence interval for the proportion of American adults who feel customer service is better today than it was two years ago.   What is the population? A) the 750 American adults sampled B) customer service representatives C) all American adults

A genetic experiment with peas resulted in one sample of offspring that consisted of 448 green peas and 171 yellow peas.   a. Construct a 95​% confidence interval to estimate of the percentage of yellow peas.   b. It was expected that​ 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict​ expectations?   Express the percentages in decimal form.