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Qualified Medicare Beneficiary (QMB) 3200 Test 1 with All Questions and 100% Correct Answers
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Qualified Medicare Beneficiary (QMB) 3200 Test 1 with All Questions and 100% Correct Answers
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Name: Score:83 Multiple choice questions
Term 1 of 83
Which of the following is a continuous random variable?
the number of houses for sale in a city
the number of correct answers on a multiple choice test
the number of goals scored in a hockey game
the heights of children in a preschool
Term 2 of 83
What is an experiment?
a guaranteed result from a controlled setup
a process that always leads to the same conclusion
a theoretical concept with no practical application
any process of observation that has an uncertain outcome
Term 3 of 83
What are elements?
the methods used to collect data
the results obtained from the data analysis
the tools used to analyze the data
the entities on which the data are collected
,Term 4 of 83
If a data set has n elements then _______?
it contains n observations
it has n different variables
it represents n unique data points
it requires n different data collection methods
Term 5 of 83
A binomial experiment is conducted in which 30 dishwashers are randomly selected from a
production plant and tested to determine whether or not they function properly. Any specific
dishwasher will work properly with a probability of p = .98. What is the random variable in this
experiment?
the 30 dishwashers
one dishwasher and whether it works properly
the probability that the dishwasher works properly
the number that works properly form the 30 selected
Term 6 of 83
What is the formula to find the first quartile?
=quartile.exc(range, 1)
=var.s
c. f(x) = .20
=percentile.exc(range, .25)
,Term 7 of 83
What excel formula issued to calculator a z factor given a probability?
=norm.inv(probability)
s = {1, 2, 3, 4, 5, 6}
****=norm.s.dist(z score, true)***
=sqrt(variance)
Term 8 of 83
What is the formula for deviation of a discrete variable?
f(x) = 1/(b - a)
(x - the population mean)^2
the mean - (standard deviation * the z value)
=percentile.exc(range, .25)
Term 9 of 83
Which of the following is a characteristic of a binomial experiment?
The trials are dependent
Each trial results in one of three outcomes
The probability of a failure, 1 - p remains constant from trial to trial
The experiment consists of n different trials
Term 10 of 83
If a data set has an odd number of observations, the median
Cannot be determined
is the value of the middle item when all items are arranged in ascending order
is the average value of the two middle items when all items are arranged in ascending
order.
must be equal to the mean
, Term 11 of 83
What is variance?
the outcome of the experiment
the population mean
the middle 50% of the data
the measure deviation around the mean
Term 12 of 83
What is the formula used to find the coefficient of variation?
the outcome of the experiment
standard deviation divided by the mean
the greater the skew
identifying and defining the problem
Term 13 of 83
What is interval data?
nominal in nature, but has an order
ex: freshman or sophomore, attitudes, such as do you 'disagree', 'agree', or 'strongly
disagree' with the actions of Congress, quality rankings of teams
-a numerical value that measures the likelihood that an uncertain event occurs
-This value is between 0 and 1 with 0 being no chance an event will occur and 1 being
certainty of an event
the differences in order are meaningful
ex: fahrenheit temperature. Difference between 70 and 80 means something. Also, the
difference of 10 degrees is meaningful, your SAT score is an interval
it contains n observations
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