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Em uma determinada semana uma empresa recebeu as seguintes quantidades de pedidos para os produtos A e B:
Assinale a opção que apresente os coeficientes de variação dos dois produtos:
De posse dos resultados de produtividade alcançados por funcionários de determinada área da empresa em que trabalha, o Gerente de Recursos Humanos decidiu empregar a seguinte estratégia: aqueles funcionários com rendimento inferior a dois desvios padrões abaixo da média (Limite Inferior - LI) deverão passar por treinamento específico para melhorar seus desempenhos; aqueles funcionários com rendimento superior a dois desvios padrões acima de média (Limite Superior - LS) serão promovidos a líderes de equipe.
Assinale a opção que apresenta os limites LI e LS a serem utilizados pelo Gerente de Recursos Humanos.
Para uma amostra de dez casais residentes em um mesmo bairro, registraram-se os seguintes salários mensais (em salários mínimos):

Sabe-se que:
Assinale a opção cujo valor corresponda à correlação entre os salários dos homens e os salários das mulheres.
Uma empresa verifi cou que, historicamente, a idade média dos consumidores de seu principal produto é de 25 anos, considerada baixa por seus dirigentes. Com o objetivo de ampliar sua participação no mercado, a empresa realizou uma campanha de divulgação voltada para consumidores com idades mais avançadas. Um levantamento realizado para medir o impacto da campanha indicou que as idades dos consumidores apresentaram a seguinte distribuição:
Assinale a opção que corresponde ao resultado da campanha considerando o seguinte critério de decisão: se a diferença X - 25 for maior que o valor , 
então a campanha de divulgação surtiu efeito, isto é, a idade média aumentou; caso contrário, a campanha de divulgação não alcançou o resultado desejado.
(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



(Se necessário utilize as tabelas das páginas 21 e 22)



the text below entitled "The real medicine":
The real medicine
Source: Newsweek (adapted)
Oct 17th 2005
People who survive a heart attack often
describe it as a wake-up call. But for a 61-year old
executive I met recently, it was more than that. This
man was in the midst of a divorce when he was
stricken last spring, and he had fallen out of touch
with friends and family members. The executive´s
doctor, unaware of the strife in his life, counseled him
to change his diet, start exercising and quit smoking.
He also prescribed drugs to lower cholesterol and
blood pressure. It was sound advice, but in combing
the medical literature, the patient discovered that he
needed to do more. Studies suggested that his risk of
dying within six months would be four times greater
if he remained depressed and lonely. So he joined
a support group and reordered his priorities, placing
relationships at the top of the list instead of the bottom.
His health has improved steadily since then, and so
has his outlook on life. In fact he now describes his
heart attack as the best thing that ever happened to
him. "Yes, my arteries are more open," he says. "But
even more important, I´m more open."
the text below entitled "The real medicine":
The real medicine
Source: Newsweek (adapted)
Oct 17th 2005
People who survive a heart attack often
describe it as a wake-up call. But for a 61-year old
executive I met recently, it was more than that. This
man was in the midst of a divorce when he was
stricken last spring, and he had fallen out of touch
with friends and family members. The executive´s
doctor, unaware of the strife in his life, counseled him
to change his diet, start exercising and quit smoking.
He also prescribed drugs to lower cholesterol and
blood pressure. It was sound advice, but in combing
the medical literature, the patient discovered that he
needed to do more. Studies suggested that his risk of
dying within six months would be four times greater
if he remained depressed and lonely. So he joined
a support group and reordered his priorities, placing
relationships at the top of the list instead of the bottom.
His health has improved steadily since then, and so
has his outlook on life. In fact he now describes his
heart attack as the best thing that ever happened to
him. "Yes, my arteries are more open," he says. "But
even more important, I´m more open."
the text below entitled "The real medicine":
The real medicine
Source: Newsweek (adapted)
Oct 17th 2005
People who survive a heart attack often
describe it as a wake-up call. But for a 61-year old
executive I met recently, it was more than that. This
man was in the midst of a divorce when he was
stricken last spring, and he had fallen out of touch
with friends and family members. The executive´s
doctor, unaware of the strife in his life, counseled him
to change his diet, start exercising and quit smoking.
He also prescribed drugs to lower cholesterol and
blood pressure. It was sound advice, but in combing
the medical literature, the patient discovered that he
needed to do more. Studies suggested that his risk of
dying within six months would be four times greater
if he remained depressed and lonely. So he joined
a support group and reordered his priorities, placing
relationships at the top of the list instead of the bottom.
His health has improved steadily since then, and so
has his outlook on life. In fact he now describes his
heart attack as the best thing that ever happened to
him. "Yes, my arteries are more open," he says. "But
even more important, I´m more open."
text below entitled "Flight of the French":
Flight of the French
Source: Newsweek (adapted)
Sept 26th/Oct 3rd 2005
The Belgians call them "fiscal refugees", but these
refugees wear Chanel. They are runaways from high
taxes in France. Officially, France has lost, on average,
one millionaire or billionaire tax payer per day for tax
reasons since 1997, when the government started trying
to track capital flight. Privately, economists say the
number is much higher. "The statistic is stupid," holds
French economist Nicolas Baverez. "It's as if, to count
contraband, you only counted what people declared at
the border."
While much of Europe has revised its tax codes, France's
fiscal inertia is virtually begging its rich to leave. Holding dear
its commitment to égalité and fraternité, France has bucked
the trend in the European Union, where most member states
have dropped the wealth tax since the mid-1990s. France
went the opposite way in 1997 by abolishing a cap that limited
the wealth-tax bill, which kicks in at incomes over 720,000
euros to 85% of a taxpayer's income. The result: some pay
more taxes than they earn in income.
text below entitled "Flight of the French":
Flight of the French
Source: Newsweek (adapted)
Sept 26th/Oct 3rd 2005
The Belgians call them "fiscal refugees", but these
refugees wear Chanel. They are runaways from high
taxes in France. Officially, France has lost, on average,
one millionaire or billionaire tax payer per day for tax
reasons since 1997, when the government started trying
to track capital flight. Privately, economists say the
number is much higher. "The statistic is stupid," holds
French economist Nicolas Baverez. "It's as if, to count
contraband, you only counted what people declared at
the border."
While much of Europe has revised its tax codes, France's
fiscal inertia is virtually begging its rich to leave. Holding dear
its commitment to égalité and fraternité, France has bucked
the trend in the European Union, where most member states
have dropped the wealth tax since the mid-1990s. France
went the opposite way in 1997 by abolishing a cap that limited
the wealth-tax bill, which kicks in at incomes over 720,000
euros to 85% of a taxpayer's income. The result: some pay
more taxes than they earn in income.