Question

USA Today reported that 18% of all people in the United States are illiterate. Suppose 10 people are chosen at random.

- Let X be the number out of the 10 chosen that are illiterate. What values can X Have?
- Explain how you know that this is a binomial distribution
- Find the P( x = 2)
- Find the P( x = 4)
- Find the P( x = 6)
- Find E(X)
- Find

Answer #1

2. USA Today reported that about 20% of all people in
the United States are illiterate. Suppose you take eight people at
random off a city street.
a. Find the expected number of people in this sample who are
illiterate.
people

USA Today reported that about 20% of all people in the United
States are illiterate. Suppose you take nine people at random off a
city street. (a) Make a histogram showing the probability
distribution of the number of illiterate people out of the nine
people in the sample. Maple Generated Plot Maple Generated Plot
Maple Generated Plot Maple Generated Plot Correct: Your answer is
correct. (b) Find the mean and standard deviation of this
probability distribution. (Round your answers to...

10.
The 2003 Statistical Abstract of the United States reported the
percentage of people 18 years of age and older who smoke. Suppose
that the study select 2017 people using a simple random sample and
finds 520 smokers. At 95% confidence, what is the margin of error?
Round your answers to four decimal places.

USA Today reported that about 47% of the general
consumer population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1007 Chevrolet owners and found that 485 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to Chevrolet is more than 47%? Use
α = 0.01.
What is the value of the sample test statistic? (Round your answer
to...

USA Today reported that about 47% of the general
consumer population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1002 Chevrolet owners and found that 487 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to Chevrolet is more than 47%? Use
α = 0.01.
What is the value of the sample test statistic? (Round your
answer to...

USA Today reported that about 47% of the general
consumer population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1005 Chevrolet owners and found that 486 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to Chevrolet is more than 47%? Use
α = 0.01.
What is the value of the sample test statistic? (Round your
answer to...

USA Today reported
that about 47% (.47) of the general consumer population in the
United States is loyal to the automobile manufacturer of their
choice. Suppose Chevrolet did a study of a random sample of 987
Chevrolet owners and found that 490 said they would buy another
Chevrolet.
Does this indicate
that the population proportion of consumers loyal to the Chevrolet
is more than 47%? Use α = 0.01. Solve the problem by
calculating the value of z and the...

USA Today reported that about 47% of the general
consumer population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1008 Chevrolet owners and found that 483 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to Chevrolet is more than 47%? Use
α = 0.01.
(a) What is the level of significance?
(b) What is the value of...

USA Today reported that about 47% of the general consumer
population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1003 Chevrolet owners and found that 486 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to Chevrolet is more than 47%?
Use α = 0.01. (a) What is the level of significance? State the
null and alternate hypotheses....

USA Today reported that about 47% of the general
consumer population in the United States is loyal to the automobile
manufacturer of their choice. Suppose Chevrolet did a study of a
random sample of 1000 Chevrolet owners and found that 502 said they
would buy another Chevrolet. Does this indicate that the population
proportion of consumers loyal to the car company is more than 47%?
Use α = 0.01. Solve the problem using both the traditional
method and the P-value...

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