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using the results from problem 1 draw the cumulative frequency in percent what percent of the observations are below
draw a frequency polygon from problem 1problem 1make a histogram of the percentages from problem 2 does the
make a histogram of the percentages from problem 1 does the distribution appear to be symmetric approximately what
use the stem and leaf graph from problem to assist you in ordering the data from the ordered data make a relative
make a stem and leaf graph of the first five rows of the blood cholesterol data in table 21 50 observations do you see
1 for the statistical package that you intend to use write out how data can be entered how random numbers can be
1 use a random number generator from a statistical computer package to assign 20 patients to two treatments with 10
you are asked to take a sample of 25 students from a freshman medical class of 180 students in order to find out what
draw one systematic sample of size 6 from the population of blood cholesterol measurements record what your starting
draw three simple random samples each of size 6 from the population of blood cholesterol measurements in table use the
1 state why a double-blind study is difficult to accomplish when two surgical methods are being compared2 what type of
1 which type of study requires a a high incidence rate b a high prevalence proportion c a high level of funding d
for one of the diseases chosen in problem for a prospective panel study try to create a figure comparable to figure for
yes is the answer to the question is psychotherapy effective studies comparing a quantitative measure of groups who did
1 a military science teacher wanted to know if there was a relationship between the class rank of west point graduates
1 an investigator wondered whether a persons education is related to his or her satisfaction in life both of these
most lightbulb manufacturing companies claim that their 60-watt bulbs have an average life of 1000 hoursa skeptic with
a professor told a class that she found a correlation coefficient of 20 between the alphabetical order of a persons
1 what descriptive statistic should be used to identify the most typical choice of major at your college2 a
based on several large studies a researcher knew that 40 percent of the public in the united states favored capital
1 a measure of dopamine a neurotransmitter activity is available for 14 acute schizophrenic patients and 14 chronic
the city park benches are 167 inches high the mean distance from the bottom of the shoe to the back of the knee is 181
1 as part of a 2-week treatment for phobias a therapist measured the general anxiety level of each client four times
reaction time scores tend to be severely skewed the majority of the responses are quick and there are diminishing
a company has three separate divisions based on the capital invested division a made 10 cents per dollar division b