In: Psychology

After the recent school shooting in Florida, high school
students have led the protests demanding stricter gun laws. After
the Treyvon Martin shooting five years ago, young people started
the Black Lives Matter movement. Based on emotional and social
development in adolescence, why do you think these young people
were the ones to work for change?

One of the most important elements
that has brought serious consideration in the American Society is
the random shootings happening at various places in the society.
Some lunatic emerge from nowhere and unleash their cruelty by start
shooting at innocent people. America's social structure turns
against itself now because it has individualism and materialism as
it's culture thus making most of the dangerous things licenced such
as gun. Materialistic society drives many people crazy as they
become more stressed either with the job or with the society.

For any country, youngsters are going to determine the future of
that country. Most of the revolutions were organised by youngsters
as they are more vibrant, independent and responsible. Most of them
become selfish when they form a family but for youngsters, they are
free. It's really a good sign that once racist and selfish country
is becoming more empathetic in understanding and accepting others
as one. American society will be rebuilt by such youngsters in the
future.

A recent study of high school students shows the percentage of
females and males who have at LEAST one notation in their school
record for inappropriate behavior. A simple random sample of high
school students was interviewed. The students were asked whether
they had a notation for inappropriate behavior in their school
record. Of the 100 females, 21 answered yes, as did 145 of the 400
males.
Part A: Construct and interpret a 99% confidence interval for
the difference in...

In a recent school year in the state of Washington, there were
319,000 high school students. Of these, 154,000 were girls and
165,000 were boys. Among the girls, 41,100 dropped out of school,
and among the boys, 10,500 dropped out. A student is chosen at
random. Round the answers to four decimal places.
(a) What is the probability that the student is female?
(b) What is the probability that the student dropped out?
(c) What is the probability that the...

In a recent survey of high school students, it was found that
the amount of time spent on reading books per week was normally
distributed with a mean of 32 minutes. Assume the distribution of
weekly reading time follows the normal distribution with a
population standard deviation of 2 minutes. Suppose we select a
sample of 20 high school students.
a. What is the standard error of the mean time?
Answer
b. What percent of the sample means will be...

A school district developed an after-school math tutoring
program for high school students. To assess the effectiveness of
the program, struggling students were randomly selected into
treatment and control groups. A pre-test was given to both groups
before the start of the program. A post-test assessing the same
skills was given after the end of the program. The study team
determined the effectiveness of the program by comparing the
average change in pre- and post-test scores between the two groups....

A recent Pew Center Research survey revealed that 68% of high
school students have used tobacco related products. Suppose a
statistician randomly selected 20 high school students. Use this
information to answer questions 39-41.
To find the probability that exactly 15 used tobacco products,
would you use the Binomial, Geometric, or Poisson distribution to
find the probability?
Set up the problem to find P (X = 15) using the appropriate
distribution. Do NOT solve.
What is the expected number of...

In a recent survey of county high school students, 100 males and
100 females, 66 of the male students and 47 of the female students
sampled admitted that they consumed alcohol on a regular basis.
Find a 90% confidence interval for the difference between the
proportion of male and female students that consume alcohol on a
regular basis. Can you draw any conclusions from the confidence
interval?
For the test of significance questions, clearly indicate each of
the formal steps...

A recent national survey found that high school students watched
an average (mean) of 7.2 DVDs per month with a population standard
deviation of 0.90 hour. The distribution of DVDs watched per month
follows the normal distribution. A random sample of 35 college
students revealed that the mean number of DVDs watched last month
was 6.20. At the 0.05 significance level, can we conclude that
college students watch fewer DVDs a month than high school
students?
e.
What is the...

A recent national survey found that high school students watched
an average (mean) of 6.5 movies per month with a population
standard deviation of 0.6. The distribution of number of movies
watched per month follows the normal distribution. A random sample
of 33 college students revealed that the mean number of movies
watched last month was 5.8. At the 0.05 significance level, can we
conclude that college students watch fewer movies a month than high
school students?
State the null...

Question 1
A recent national survey found that high school students watched
an average of 6.8 videos per month. A random sample of 36 high
school students revealed that the mean number of vidoes watched
last month was 6.2. From past experience it is known that the
population standard deviation of the number of vidoes watched by
high school students is 0.5. At the 0.05 level of signifiance, can
we conclude that high school students are watching fewer
vidoes?
(a)...

A recent national survey found that high school students watched
an average (mean) of 6.6 DVDs per month with a population standard
deviation of 0.90 hour. The distribution of DVDs watched per month
follows the normal distribution. A random sample of 43 college
students revealed that the mean number of DVDs watched last month
was 6.10. At the 0.05 significance level, can we conclude that
college students watch fewer DVDs a month than high school
students?
d.
What is your...

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