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Compare the effectiveness of three methods of teaching (IV). You plan to administer a standardized test (DV measured on an interval scale measuring knowledge acquisition) to the students in three classes with each class using a different teaching method.
What statistical test could I use and why?
What is the best method for assigning samples to the following hypothesis?
A class that uses one of three methods of teaching will have an increase in the level of knowledge acquisition.
Test the claim that for the adult population of one town, the mean annual salary is given by μ = $30,000.
Find Probability of independent events.Consider again the auto repair rates described. If you own two cars, what is the probability that.
Find the probability of getting a head and rolling a six
What are the odds against drawing a card from an ordinary deck of cards and getting a spade?
The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A random sample of 100 orders will be used to estimate the proportion of first-time customers. Assume that the president is correct..
Find out best decision, by using following decision criteria.
How many ounces should they advertise on the box if they want to be sure that no more than 0.5% of the boxes are filled less than that advertised amount?
Comment on your statistical findings? Do you agree with your initial statement regarding the preference of an ANOVA over a t-test when examining more than two groups?
The Bureau of the Census reports that the average commuting time for citizens of both Baltimore, Maryland, and Miami, Florida is approximately 29 minutes (uMiami=29 and uBaltimore=29 minutes).
WHich sampling method from the choices listed above would be best? Describe how you would carry out your chosen sampling method of a student from part (a)
What is the probability that the kickoff will go between 60 and 75 yards if the average kickoff is 50 yards with a variance of 49?
Following data represent concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Sample standard deviation is?
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