Statsmedic unit 5 mc review exam
questions and answers
In a large city, 46% of adults support the local football team
building a new stadium. If a poll is taken from a random sample of
80 adults in the large city, which of the following properly describes
the sampling distribution of the sample proportion of adults who
support the stadium? -
correct answer (C) µp̂ = 0.46, σp̂ = 0.056, the distribution is
approximately normal.
Which of the following statements is true? -
correct answer (C) A sampling distribution is the distribution of
a statistic calculated from all possible samples of the
same size from the same population.
The weight of a single bag checked by an airplane passenger follows
a distribution that is right skewed with a mean of 38 pounds and a
standard deviation of 6.2 pounds. If a random sample of 96 bags is
selected, what is the probability that the average weight of the
bags exceeds 40 pounds? -
correct answer (A) 0.0008
Below are histograms displaying the values taken by three sample
statistics in several hundred samples from the same population.
Each histogram has the same scale and the true value of the
questions and answers
In a large city, 46% of adults support the local football team
building a new stadium. If a poll is taken from a random sample of
80 adults in the large city, which of the following properly describes
the sampling distribution of the sample proportion of adults who
support the stadium? -
correct answer (C) µp̂ = 0.46, σp̂ = 0.056, the distribution is
approximately normal.
Which of the following statements is true? -
correct answer (C) A sampling distribution is the distribution of
a statistic calculated from all possible samples of the
same size from the same population.
The weight of a single bag checked by an airplane passenger follows
a distribution that is right skewed with a mean of 38 pounds and a
standard deviation of 6.2 pounds. If a random sample of 96 bags is
selected, what is the probability that the average weight of the
bags exceeds 40 pounds? -
correct answer (A) 0.0008
Below are histograms displaying the values taken by three sample
statistics in several hundred samples from the same population.
Each histogram has the same scale and the true value of the
