Foram encontradas 120 questões.
Um remédio para baixar a pressão arterial foi testado
em pessoas com hipertensão. O referido medicamento foi
comparado a outro medicamento que já estava em uso no
mercado, por meio de amostragens aleatórias simples. Um teste t
foi implementado para verificar se a pressão arterial dos testados
baixava mais, em média, com o uso do novo remédio. Os
pesquisadores escolheram um nível de significância de 0,01. Se o
remédio baixasse a pressão arterial em mais que certa quantidade,
p, o fabricante mudaria sua linha de produção para produzir o
novo remédio. A potência do teste para detectar uma redução
dessa quantidade, p, foi 0,9.
Com relação a essa situação hipotética, julgue o item que se
segue.
Provas
Questão presente nas seguintes provas
Determinado pesquisador reuniu dados de vários
municípios brasileiros e estimou um modelo de regressão linear
múltipla por mínimos quadrados ordinários. A variável
dependente foi a taxa de homicídios, e as variáveis independentes
incluíam variáveis, como, por exemplo, PIB per capita, média de
anos de estudo, índice de Gini e outras variáveis
socioeconômicas. Após a estimação, o pesquisador calculou a
correlação entre os resíduos e as variáveis independentes e notou
que essas correlações foram iguais a zero.
Com referência a essa situação hipotética, julgue o próximo item.
A ausência de correlação entre as variáveis independentes e os resíduos da regressão mostra que as variáveis independentes são exógenas.
Com referência a essa situação hipotética, julgue o próximo item.
A ausência de correlação entre as variáveis independentes e os resíduos da regressão mostra que as variáveis independentes são exógenas.
Provas
Questão presente nas seguintes provas
As technology continues to reshape nearly every sector of society, it is also transforming police work in the 21º century. Law enforcement leaders can now count on an arsenal of high-tech systems and tools that are designed to enhance public safety, catch criminals and save lives.
One of their options is the use of biometrics. Police have been using fingerprints to identify people for over a century. Now, in addition to facial recognition and DNA, there is an ever-expanding array of biometric characteristics being utilized by law enforcement and the intelligence community. These include voice recognition, palmprints, wrist veins, iris recognition, and even heartbeats.
With comprehensive electronic databases now in place to more effectively use DNA and other biometric data, even the use of fingerprints to identify suspects has gone high-tech. For example, a CNBC report explains how police in London can now use a mobile INK (Identity Not Known) biometrics device to scan a suspect's fingerprints and in many cases reveal their identity within 60 seconds.
Internet: <onlinedegrees.sandiego.ed> (adapted).
Judge the following item based on the text above.
Provas
Questão presente nas seguintes provas
As technology continues to reshape nearly every sector of society, it is also transforming police work in the 21º century. Law enforcement leaders can now count on an arsenal of high-tech systems and tools that are designed to enhance public safety, catch criminals and save lives.
One of their options is the use of biometrics. Police have been using fingerprints to identify people for over a century. Now, in addition to facial recognition and DNA, there is an ever-expanding array of biometric characteristics being utilized by law enforcement and the intelligence community. These include voice recognition, palmprints, wrist veins, iris recognition, and even heartbeats.
With comprehensive electronic databases now in place to more effectively use DNA and other biometric data, even the use of fingerprints to identify suspects has gone high-tech. For example, a CNBC report explains how police in London can now use a mobile INK (Identity Not Known) biometrics device to scan a suspect's fingerprints and in many cases reveal their identity within 60 seconds.
Internet: <onlinedegrees.sandiego.ed> (adapted).
Judge the following item based on the text above.
Identifying fingerprints, facial features and DNA characteristics has only recently become part of the investigation methods employed by law enforcement.
Provas
Questão presente nas seguintes provas
As technology continues to reshape nearly every sector of society, it is also transforming police work in the 21º century. Law enforcement leaders can now count on an arsenal of high-tech systems and tools that are designed to enhance public safety, catch criminals and save lives.
One of their options is the use of biometrics. Police have been using fingerprints to identify people for over a century. Now, in addition to facial recognition and DNA, there is an ever-expanding array of biometric characteristics being utilized by law enforcement and the intelligence community. These include voice recognition, palmprints, wrist veins, iris recognition, and even heartbeats.
With comprehensive electronic databases now in place to more effectively use DNA and other biometric data, even the use of fingerprints to identify suspects has gone high-tech. For example, a CNBC report explains how police in London can now use a mobile INK (Identity Not Known) biometrics device to scan a suspect's fingerprints and in many cases reveal their identity within 60 seconds.
Internet: <onlinedegrees.sandiego.ed> (adapted).
Judge the following item based on the text above.
Provas
Questão presente nas seguintes provas
In a nutshell, police officers maintain law and order,
protect the general public, investigate crimes and prevent
criminal activity from happening.
If you become a police officer, your career will be all
about crime prevention, prosecution and punishment. Policing is
such a varied career path that you could find yourself doing all
kinds of activities.
You might be responsible for preventing heinous crimes
and stopping dangerous criminal groups, such as organised crime
syndicates. Alternatively, you might be working to diminish
anti-social behaviour, or you might be taking part in
counter-terrorism activities.
Moreover, you might be responsible for investigating
crimes against people and their property, or maintaining public
peace and order at large events, public gatherings and protests.
At all times, police officers must make sure their actions
comply with current legislation. Consequently, police officers
must keep up to date with the latest developments in crime
detection and prevention.
Internet: <www.allaboutcareers.com> (adapted).
Concerning the text above, judge the following item.
Provas
Questão presente nas seguintes provas
In a nutshell, police officers maintain law and order,
protect the general public, investigate crimes and prevent
criminal activity from happening.
If you become a police officer, your career will be all
about crime prevention, prosecution and punishment. Policing is
such a varied career path that you could find yourself doing all
kinds of activities.
You might be responsible for preventing heinous crimes
and stopping dangerous criminal groups, such as organised crime
syndicates. Alternatively, you might be working to diminish
anti-social behaviour, or you might be taking part in
counter-terrorism activities.
Moreover, you might be responsible for investigating
crimes against people and their property, or maintaining public
peace and order at large events, public gatherings and protests.
At all times, police officers must make sure their actions
comply with current legislation. Consequently, police officers
must keep up to date with the latest developments in crime
detection and prevention.
Internet: <www.allaboutcareers.com> (adapted).
Concerning the text above, judge the following item.
Provas
Questão presente nas seguintes provas
In a nutshell, police officers maintain law and order,
protect the general public, investigate crimes and prevent
criminal activity from happening.
If you become a police officer, your career will be all
about crime prevention, prosecution and punishment. Policing is
such a varied career path that you could find yourself doing all
kinds of activities.
You might be responsible for preventing heinous crimes
and stopping dangerous criminal groups, such as organised crime
syndicates. Alternatively, you might be working to diminish
anti-social behaviour, or you might be taking part in
counter-terrorism activities.
Moreover, you might be responsible for investigating
crimes against people and their property, or maintaining public
peace and order at large events, public gatherings and protests.
At all times, police officers must make sure their actions
comply with current legislation. Consequently, police officers
must keep up to date with the latest developments in crime
detection and prevention.
Internet: <www.allaboutcareers.com> (adapted).
Concerning the text above, judge the following item.
Provas
Questão presente nas seguintes provas
- Interpretação de texto | Reading comprehension
- Gramática - Língua InglesaAdvérbios e conjunções | Adverbs and conjunctions
In a nutshell, police officers maintain law and order,
protect the general public, investigate crimes and prevent
criminal activity from happening.
If you become a police officer, your career will be all
about crime prevention, prosecution and punishment. Policing is
such a varied career path that you could find yourself doing all
kinds of activities.
You might be responsible for preventing heinous crimes
and stopping dangerous criminal groups, such as organised crime
syndicates. Alternatively, you might be working to diminish
anti-social behaviour, or you might be taking part in
counter-terrorism activities.
Moreover, you might be responsible for investigating
crimes against people and their property, or maintaining public
peace and order at large events, public gatherings and protests.
At all times, police officers must make sure their actions
comply with current legislation. Consequently, police officers
must keep up to date with the latest developments in crime
detection and prevention.
Internet: <www.allaboutcareers.com> (adapted).
Concerning the text above, judge the following item.
Provas
Questão presente nas seguintes provas
Julgue o próximo item, relativo a aplicativos e procedimentos associados à Internet.
Caso se deseje pesquisar, no Google, exatamente a frase “operação apate” (entre aspas), restringindo-se a pesquisa ao sítio da PCDF, em <https://www.pcdf.df.gov.br>, mas excluindo-se as páginas que contenham a palavra “drogas” (sem aspas), a pesquisa deverá ser feita conforme apresentado a seguir.
"operação apate" -drogas site:pcdf.df.gov.br
Provas
Questão presente nas seguintes provas
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