A random sample of 200 people is chosen and their eye color was observed with the following counts: Color Count Brown 80 Blue 10 Hazel 7 Green 3 What is the mode of the sample
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A random sample of 200 people is chosen and their eye color was observed with the following counts:
Color | Count |
Brown | 80 |
Blue | 10 |
Hazel | 7 |
Green | 3 |
What is the
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- Each of eighty-four middle school students was asked, "What is your favorite subject?" Here are the results: • Among the girls surveyed, 15 chose "Social Studies", 6 chose "Science", 11 chose "English", and 10 chose "Math". • Among the boys surveyed, 16 chose "Social Studies", 5 chose "Science", 12 chose "English", and chose "Math". Construct a two-way frequency table for the data: Girls Boys Social Studies Sclence English MathHow many samples or treatments are here? 490 undergraduate students at a state university in the southwestern region of the United States were surveyed. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body are category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is an association between class standing and body art category. Assume that it is reasonable to regard the sample as representative of the students at this university. Use α = 0.01. Freshman Sophmore Junior Senior Body Piercings 61 7 14 86 Only Tattoos 43 11 10 64 Only Mildly Piercings and Tattoos 20 9 7…A large group of workers is divided into three departments: those who work in special operations, those who work on the main floor, and those who work in management. Strep throat has been going around and a health inspector would like to know if there is a relationship between department and having strep throat. She selects a random sample of 100 workers and classifies each one according to their department and whether they have strep throat. The data are displayed in the table. The health inspector would like to know if these data provide convincing evidence that the distribution of strep throat status differs across the departments in the population of all workers of this large company. What is the appropriate inference procedure? chi-square test for goodness of fit because the data come from one random sample chi-square test for homogeneity because the data come from independent random samples chi-square test for association/independence because the data come from one random…
- Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graphA study asked people many questions about their cars. One question was the reason that a person chooses a given car, and that data is in the table.Part asked to find the sample correlation coefficient
- 4. The numbers of incorrect answers on a true-false test for 15 students were recorded as follows: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3, 5, 2, 1, 4, 2. Find the median and the mode.In a study, the data you collect is Letter grade (A,B,C,D,F). This data is: O Quantitative O Qualitative (Categorical)Suppose 20% of the students on campus smoke. You select two students at random. In what percentage of samples will both students be smokers?
- To collect data about the number of students in your high school who have a part time job, which of the following methods is most likely to lead to a sample that is the most representative of the students in your school? Interview all the girls in the school. Ask the principal. Interview all the students in 9th grade. Assign each student in the school a number and randomly select students to be interviewed. Interview all the students who are on the sports teams in the school.Listed below are the numbers of words spoken in a day by each member of six different couples. The data are randomly selected. How do you use a 0.05 significance level to test the claim that among couples, males speak more words in a day than females?490 undergraduate students at a state university in the southwestern region of the United States were surveyed. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body are category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is an association between class standing and body art category. Assume that it is reasonable to regard the sample as representative of the students at this university. Use α = 0.01. 1. What type of question is this-estimation or hypothesis?2. What type of study is this sample data or experiment data?3. What type of data is this? Univariate or bivariate? Categorical or Numerical?4. How many samples or treatments?
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