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Revisar envio do teste: Atividade - Statistics 1
Estatística Avaliação e Certificado Acesse a atividade e o Certificado de Statistics 1
Revisar envio do teste: Atividade - Statistics 1 
Usuário MANOEL AMBROSIO MAGESTE DOS SANTOS
Curso Estatística
Teste Atividade - Statistics 1
Iniciado 13/06/20 10:52
Enviado 13/06/20 11:43
Status Completada
Resultado da tentativa 9 em 10 pontos 
Tempo decorrido 51 minutos
Resultados exibidos Respostas enviadas, Respostas corretas, Comentários
Pergunta 1
Resposta Selecionada: 
Resposta Correta: 
Feedback da resposta:
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?
 Big Slice
 Big Slice
This is correct.
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Pergunta 2
Resposta Selecionada: 
Resposta Correta: 
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. 
What are the individuals in this dataset?
The 55 students enrolled in the professor’s class
The 55 students enrolled in the professor’s class
Pergunta 3
Resposta Selecionada: 
Resposta Correta: 
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. Here again, is the distribution of number hours of
exercise per week for 50 male college student:
What do you expect the relationship between the mean and the median of this distribution to be?
The mean will be larger than the median
The mean will be larger than the median
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Pergunta 4
Resposta Selecionada: 
Resposta Correta: 
Feedback da resposta:
Skills: Calculate appropriate conditional percentages.
Identify subjects and variables "multiple choice" question: select the correct answer. 
What is the correct percentage conversion of Too Many sodas for the Female response?
21.5%
21.5%
Correct! You used Females and Too Many. Great job!
Pergunta 5
Resposta Selecionada: 
Resposta Correta: 
Question 6—11 are related to the following information:The histogram below displays the distribution of the
number of hours of exercise per week for 50 male college students:
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. What percentage of the students exercise less than 9
hours per week?
64%
64%
Pergunta 6
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 Female, About Right?
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Resposta Selecionada: 
Resposta Correta: 
560/855
560/760
Pergunta 7
Resposta Selecionada: 
Resposta Correta: 
Feedback da resposta:
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.
Female= 73.7%, Male= 67.0%
Female= 73.7%, Male= 67.0%
Correct! Your calculations were spot on! Great job!
Pergunta 8
Resposta Selecionada: 
Resposta Correta: 
Feedback
da
Skills: Identify subjects and variables
Generate 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 16% of self-employed
individuals work less than how many hours per week?
39
39
This is correct. Based on the Standard Deviation Rule approximately 68% of self-employed
individuals work between 39 and 55 hours. This means that approximately 16% of self-
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Sábado, 13 de Junho de 2020 11h44min02s BRT
resposta: employed individuals work less than 39 hours and 16% work more than 55 hours.
Pergunta 9
Resposta
Selecionada:
Resposta Correta:
Feedback
da
resposta:
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. Here again, is the distribution of number hours for
exercise per week of 50 male college student:
If the largest observation (23 hours) was wrongly recorded as 230 hours. How would that effect the mean,
median and the standard deviation of this distribution?
The mean and standard deviation will increase, but the median will not change.
The mean and standard deviation will increase, but the median will not change.
This is correct. The mean and standard deviation are affected by outliers (and therefore will
increase), but the median is not affected by outliers and therefore will not change.
Pergunta 10
Resposta Selecionada: 
Resposta Correta: 
Feedback da
resposta:
Skills: Compare distributions
Identify subjects and variablesInterpret boxplots
"multiple choice" question: select the correct answer. Who has the higher scores on SSHA, in general?
Females
Females
Correct! The box for the females ends up being higher than the males box. Good
work!
← OK
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