Baixe o app para aproveitar ainda mais
Prévia do material em texto
Atividade - Statistics 1 Pergunta 1 1 em 1 pontos Skills: Compare distributions Identify subjects and variablesInterpret boxplots "multiple choice" question: select the correct answer. Who has the higher scores on SSHA, in general? Resposta Selecionada: Females Resposta Correta: Females Feedback da resposta: Correct! The box for the females ends up being higher than the males box. Good work! Pergunta 2 1 em 1 pontos Skills: Calculate appropriate conditional percentages. Identify subjects and variables "multiple choice" question: select the correct answer. Which numbers would be used to convert to a percentage for Male, Not Enough? Resposta Selecionada: 73/440 Resposta Correta: 73/440 Feedback da resposta: Correct! 73 is the total number of Males whose soda consumption is considered "Not Enough" and 440 is the total of all Males. Great job! Pergunta 3 1 em 1 pontos Skills: Generate graphical displays of the distribution of a quantitative variable and use them to summarize the overall pattern of the distribution. Identify subjects and variables "multiple choice" question: select the correct answer. Here again, is the side-by-side boxplots that display the delivery time distributions (in minutes) of two pizza shops – “Big Slice” and “City Pizza” Which pizza shop has more variability in delivery times? Resposta Selecionada: Big Slice Resposta Correta: Big Slice Feedback da resposta: This is correct. Pergunta 4 1 em 1 pontos Skills: Generate graphical displays of the distribution of a quantitative variable and use them to summarize the overall pattern of the distribution. Identify subjects and variables"multiple choice" question: select the correct answer. The side-by-side boxplots below display the delivery time distributions (in minutes) of two pizza shops – “Big Slice” and “City Pizza” 75% of Big Slice deliveries take: Resposta Selecionada: More than 25 minutes Resposta Correta: More than 25 minutes Feedback da resposta: This is correct. Pergunta 5 0 em 1 pontos Questions 1-3 are related to the following information: A college professor records the following information for each of the 55 students enrolled in her class: • Gender • Year (Freshman, Sophomore, Junior, Senior) • Number of missed classes • Midterm score • Extra credit (1 – Submitted, 2 – Not submitted) • Final exam score Skills: Understand the structure of a data set and identify different type of variables.Identify subjects and variables "multiple choice" question: select the correct answer. Which of the following is a categorical variable? Resposta Selecionada: Final exam score Resposta Correta: Extra credit (1 – Submitted, 2 – Not submitted) Pergunta 6 1 em 1 pontos Skills: Calculate appropriate conditional percentages. Identify subjects and variables. "multiple choice" question: select the correct answer. In the below two-way table, convert the counts to percentages within (or restricted to) each category of the explanatory variable separately for About Right. Resposta Selecionada: Female= 73.7%, Male= 67.0% Resposta Correta: Female= 73.7%, Male= 67.0% Feedback da resposta: Correct! Your calculations were spot on! Great job! Pergunta 7 1 em 1 pontos Questions 1-3 are related to the following information: A college professor records the following information for each of the 55 students enrolled in her class: • Gender • Year (Freshman, Sophomore, Junior, Senior) • Number of missed classes • Midterm score • Extra credit (1 – Submitted, 2 – Not submitted) • Final exam score Skills: Understand the structure of a data set and identify different type of variables.Identify subjects and variables "multiple choice" question: select the correct answer. How many variables are there in this dataset? Resposta Selecionada: 6 Resposta Correta: 6 Feedback da resposta: This correct. Pergunta 8 0 em 1 pontos Skills: Summarize the distribution of a categorical variable. Identify subjects and variables "multiple choice" question: select the correct answer. A June 2017 poll asked a random sample of 2,500 U.S. adults the following question:Which comes closest to your view about the 2010 health care law (Obamacare)? The law is working well and should be kept in place as is;There are some good things in the law, but some changes are needed to make it work better;The law has so much wrong with it that it needs to be repealed entirely.The following pie-chart represents the distribution of responses: Which of the following statements is true regarding what we can learn from the above distribution? Resposta Selecionada: Roughly twice as many U.S. adults feel that changes are needed to the the 2010 healthcare law compared to those who would like to see it completely repealed. Resposta Correta: All of the above statements are true. Pergunta 9 1 em 1 pontos Skills: Identify subjects and variablesGenerate numerical measures of center of spread of the distribution of a quantitative variable and use them to summarize the distribution. "multiple choice" question: select the correct answer. Based on the collected data, approximately what percent of self-employed individuals work between 47 and 63 hours per week? Resposta Selecionada: 47.5% Resposta Correta: 47.5% Pergunta 10 0 em 1 pontos Skills: Compare distributions Identify subjects and variables Interpret boxplots "multiple choice" question: select the correct answer. Which gender has a larger range of SSHA scores? Resposta Selecionada: Females Resposta Correta: Males
Compartilhar