Statistic course You are performing a study about daily water consumption of UVI Students (in fluid...
Statistic course
You are performing a study about daily water consumption of UVI Students (in fluid ounces). You randomly select 20 students and record the daily water consumption shown below: 81 60 90 87 75 80 66 75 82 84 82 64 100 94 77 94 70 79 75 85
3. Find the five-number summary and construct a box and whisker plot for the data set. (7 pts.)
4. Find the variance and Standard deviation of the data set. Round your answer to the nearest hundredths. You may do this manually, using technology, or by using the frequency distribution to get an approximation. (5 pts.)
5. If one student is randomly selected from those surveyed, what is the probability that this student consumes at least 75 fluid ounces of water per day? (3pts.)
6. If one student is randomly selected from those surveyed, what is the probability that this student consumes less than 75 fluid ounces of water per day? (3pts.)
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Statistic course
You are performing a study about daily water consumption of UVI
Students (in fluid...
Statistic course A. You are performing a study about daily water consumption of UVI Students (in...
Statistic course A. You are performing a study about daily water consumption of UVI Students (in fluid ounces). You randomly select 20 students and record the daily water consumption shown below: 81 60 90 87 75 80 66 75 82 84 82 64 100 94 77 94 70 79 75 85 . Find the mean, median, mode and range of the data set. (8 pts.)
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[6 pts] Among UI students like you, about 86% live in an apartment. Among those students who live in an apartment, 18% own a pet. Among those who don't, 43% own a pet. If a randomly chosen student owns a pet, what is the probability that (s)he lives in an apartment? Determine your answer by making a table similar to Table 1.3 in Cowles. 1. RT Table 1.3 Bayes' rule to go from prior probabilities to posterior probabilities Model Breast...
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students....
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Psychologists at an university compared the levels of alcohol consumption of male and female freshman students....
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 126 males and 184 females are provided in the accompanying table Click here to view the table a. For each gender, find a 95% confidence interval for mean weekly alcohol consumption For males, the 95% confidence interval is ( (Round to...
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Opinions about whether caffeine enhances test performance differ. You design a study to test the impact of drinks with different caffeine contents on students' test-taking abilities. You choose 21 students at random from your introductory psychology course to participate in your study. You randomly assign each student to one of three drinks, each with a different caffeine concentration, such that there are seven students assigned to each drink. You then give each of them a plain capsule containing the precise...
You are performing a study about weekly per capita milk consumption. A previous study found weekly per capita milk consumption to be normally distributed, with a mean of 39.6 fluid ounces and a standard deviation of 5.5 fluid ounces. You randomly sample 30 people and record the weekly milk consumptions shown below. 32 42 29 31 36 40 29 49 33 40 34 35 25 30 43 35 37 41 41 40 30 26 22 36 48 36 40 36...
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 125 males and 182 females are provided in the accompanying table Click here to view the table a. For each gender, find a 95% confidence interval for mean weekly alcohol consumption For males, the 95% confidence interval is ( (Round to...
[6 pts] Among UI students like you, about 86% live in an apartment. Among those students who live in an apartment, 18% own a pet. Among those who don't, 43% own a pet. If a randomly chosen student owns a pet, what is the probability that (s)he lives in an apartment? Determine your answer by making a table similar to Table 1.3 in Cowles. 1. RT Table 1.3 Bayes' rule to go from prior probabilities to posterior probabilities Model Breast...
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 128 males and 184 females are provided in the accompanying table 囲Click here to view the table a. For each gender, find a 95% confidence interval for mean weekly alcohol consumption For males, the 95% confidence interval is (DD, (Round to...
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 126 males and 184 females are provided in the accompanying table Click here to view the table a. For each gender, find a 95% confidence interval for mean weekly alcohol consumption For males, the 95% confidence interval is ( (Round to...
Opinions about whether caffeine enhances test performance differ. You design a study to test the impact of drinks with different caffeine contents on students' test-taking abilities. You choose 21 students at random from your introductory psychology course to participate in your study. You randomly assign each student to one of three drinks, each with a different caffeine concentration, such that there are seven students assigned to each drink. You then give each of them a plain capsule containing the precise...
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