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simple random sampling uses a sample of size n from a population of size n to obtain data that can be used to make
there are 2 urns urn a contains 2 white and 7 red balls and urn b contains 2 white and 5 red balls if a white ball is
roughly every 10 years the american film institute selects the top 100 movies of all timenbspfrom the last such
it takes two construction workers a mean of 32 hours and a standard deviation of 2 hours to erect the red barn
answer the following question please show all your workingyour boss has asked you to collect data on how much time
a student calculated the mean of a set of 15 numbers and gets a result of 416 in calculating the mean he inadvertently
the mean of a sample of 15 measurements is 356 suppose that the sample is enlarged to 16 measurements by including one
a retail company must choose a few employees to send to a national retail conference of the 746 employees at this
there are 20 people at a chess club on a certain day they each find opponents and start playing how many possibilities
solve the question given belowprove by boolean algebraic manipulation that the following expressions are valid a zyx
the difference between cluster sampling and stratified sampling would bethere is no difference it is two names for the
when considering data with a mound-shaped distribution and a mean of 18 and a variance of 4 approximately what
answer the following question please show all your workingscientists have determined that benzene a chemical solvent
a high school student did not bother to read the questions on the math portion of the act he randomly guessed on each
an archaeologist numbers some articles 1 to 11 in the order he discovers them he selects at random a sample of 3 of
the number of laptops per quarter sold by a computer outlet in a suburb was recorded for three consecutive years from
hormone replacement therapywhen women go through menopause the production of hormones in their bodies changes the
you want to establish control limits on your chart with a certain confidence level what z-value do you need to obtain a
there are black blue and white marbles in a bag the probability of choosing a black marble is 036 the probability of
of the physics grads at a particular university 58 make more than 50000 as starting salary if 5 graduates are selected
how many different ways can we choose 2 plumbers and 3 electricians out of 4 plumbers and 5 electricians to redo the
how many ways can sprinters come in first second and third in a race with 10
suppose an economist knows the following statistics about a particular economythe economy will be in a period of strong
about 58 of people in a particular town attend the last winter festival if 6 people are chosen at random what is the
of americans using library services 59 borrow books if 3 patrons are chosen at random what is the probability that none