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Question 1:
When a researcher has two samples with two means, one of the assumptions for two samples is independence of between the two samples. What does this mean? What happens if the independence assumption is violated?
Question 2:
What are the differences among a proportion, a percentage, and a ratio? When would a researcher use a hypothesis test for the difference in two population proportions? Explain.
Using the basic weighted additive method of multiple criteria evaluation, determine which design should be recommended for the new structure.
Then explain your answer to someone who has never had a course in statistics (but who is familiar with mean, standard deviation, and Z scores).
What if you were told that the player used a different method of shooting foul shots for the last 20 days? How might this information change your conclusion in a?
an aluminum wire is wrapped with insulation and surrounded by air. the wire conducts electricity. the electrical power
A cell phone company collects data from a random sample of 500 households. The results indicate that 135 of the households would add an extra cellular number, provided it was offered at a reduced monthly cost.
To estimate the prevalence of HIV, the State of New York implemented a policy of testing women who gave birth. The test that was used is known as ELISA; it is actually a test for the HIV antibody. Assume that ELISA has a sensitivity of 0.998 and a sp..
If a 99% confidence interval is calculated to estimate the difference between the average hourly rates for each type of graduate, what is the margin of error? Assume both population standard deviations are equal.
a random sample of 12 men and 12 women were asked to report the number of hours they watched television on a wednesday
Create Gantt chart using MSP. Suppose the 5 day workweek, compute critical path of the project.
the dice game craps is played as follows. the player throws two dice and if the sum is seven or eleven then she wins.
in a community 40 of the population is smoker. i randomly choose 60 residents from that community and ask if each of
discuss a decision familiar to you that can be analyzed by using a decision tree.please answer in at least 3 sentences
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