In a recent poll, 310 people were asked if they liked dogs, and 95% said they did. Find the Margin of Error for this poll, at the 90% confidence level. Give your answer to four decimal places if possible.

Q: A research firm claims that the distribution of the days of the week that people are most likely to…

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Q: After six biology tests, Ruben has a mean score of 76. What score does Ruben need on the next test…

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Q: A data set contains three points, and two of the residuals are -10 and -20. What is the third…

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Q: A data set has five values. The 45th and the 55th percentile are both 25. The largest value is 125,…

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Q: Howard scored in the 55th percentile rank on an exam. If 400 students took the exam, how many…

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Q: Calcium is essential to tree growth because it promotes the formation of wood and maintains cell…

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Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

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Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: A professor grades students on three tests, four quizzes, and a final examination. Each test counts…

A: It is given that Sara has test scores of 95, 70, and 86, quiz scores are 91, 66, 76, 85 and her…

Q: A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed…

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Q: The scores of 10 golfers were 73; 71; 78; 72; 67; 76; 67; 75; 73; 75. Calculate the range of the…

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Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

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Q: MJ took a sample of 50 pieces of data. She added up all of the pieces of data and then divided by…

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Q: The highest score in a distribution is 74 and the lowest score is 51. What is the range?

A: We have given thatminimum value = 51maximum value = 74

Q: A May 2011 Gallup Poll found that many Americans believe in ghosts and other supernatural phenomena.…

A: The frequency of a class or observation is the number of values corresponding to it.

Q: Calculate the appropriate measure of association for this study. Round to the nearest hundredth. In…

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.