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Regarding four scales referring to levels of measurement: Nominal, Ordinal, Interval and Ratio.
Please pick one and discuss one level of measurement, and briefly describe how you would use that type of measurement in a study.
You run a two tail t-test. The critical value for this test at the .05 level is a t of 7.82. What value must the obtained t-test statistic be in order to be considered significant at the .05 level?
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
A much larger sample would be needed to estimate the proportion of the U.S. Army's 2.4 million active duty and reserve personnel who approved the repeal than would be needed to estimate the proportion of the Marine Corp's 200,000 personnel who fel..
One flight daily to a certain destination. The following information shows the probability distribution of late arrivals for that flight in the past month:
Test whether there is a difference in the mean of times men and women and determine the p-value.
A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at the workplace. Assuming that his claim is right, find the probability that at most 4 out of 6 workers randomly chosen will be wearing their helmets wh..
Is it harder to get into graduate programs in psychology or history? We randomly selected five institutions from among all U.S. institutions with graduate programs.
State the appropriate hypotheses. Obtain a test statistic and p-value. Interpret the results at ? = .01. Is normality assured? Is the difference large enough to be important?
If the Pearson Correlation is 0.18, what do we get, what is the value called, and what does it tell us?
As number sampled is large and those advocating a strike constitute over 50%, can we suppose that majority of all steelworkers favour a strike?
Which of the following measures only the strength of a relationship?
Compute the value of the test statistic (to 2 decimals).
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