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What statistical analysis would be best to use when comparing two companies that have taken an five question 7 scale likert survey online to compare and assess if there is a problem with diversity?
Using the class dot plots constructed earlier in this lesson, count the number of times a sample proportion is less than two standard deviations from the true proportion for each plot. Do the results agree with your answer to part a?
Let's play a game. An urn contains five red, four green and one gold ball other than color, the balls are identical. You are blindfolded and allowed to pick a ball from the urn. Red pays $5, green pays $10 and gold pays $50.
The following data give the diffusion time (hours) of a silicon wafer used in manufacturing integrated circuits and the resulting sheet resistance of transfer:
Carbon monoxide (CO) emissions for a certain kind of car vary mean 2.4 g/mi and standard deviation 0.7g/mi. A company has 60 of these cars in its fleet. Let y represent the mean CO level for the companies fleet. Estimate the probability that y is ..
Catherine Ruby (2006), a doctoral student at New York University, conducted an online survey to ascertain the reasons that international students chose.
What are the primary differences between investments in corporate stock versus corporate bonds? Since bonds pay interest, does that imply the individuals risk exposure is less for investing in bonds rather than stock?
In performing a hypothesis test based on a simple random paired sample to compare the means of two populations, knowing that the paired difference variable has a symmetric distribution that is far from normal
By using the maximax criterion, what decision should be made by the decision maker?
Comparing the results according to GENDER. male take 1 and females take 2. Then. we find mean and standard deviation and then make independent/unrelated t-test.
Can you conclude that the variances of the breaking strengths of natural and synthetic fibers are different? Use a level of significance α of 0.05. What assumptions are necessary to perform this test?
Construct the 95% confidence interval estimate of the mean number of migraine attacks for those treated with acupuncture.
Explain the origins of Social Security. How does the original system compare to today?
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