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1. Making comparisons From your analysis of the two sets of data, decide which is the longer string. On what basis did you make the decision? Are you sure that your decision is correct?
2. Write a brief summary of what you learned in this activity about measurement bias.
IQ scores from the general population form a normal distribution with a μ = 100 and σ = 15. However, data indicate that children's intelligence may be affected if their mothers have German measles during pregnancy.
A group of Brigham Young University
What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?
The manufacturer of beer kegs claims that 95% of the kegs they produce do not leak after 5 years of use. A bar owner tests the manufacturers claim at the 0.05 significance level. She takes a sample of 200 kegs and finds 185 do not leak. Wha..
Test your hypothesis using the "ONE SAMPLE T-TEST" command (go to ANALYZE>COMPARE MEANS>ONE SAMPLE T-TEST) to test whether there is a significant difference between the sample mean and the population mean of 24.5 (this is your TEST VALUE). Click o..
The numbers in the row labeled x are the number of hours spent in the batting cages each week. The numbers in the row labeled y are the number of wins produced for that year.
Given a business situation word problem or case study such as one dealing with processing time or quantity of fill, use the normal probability distribution to determine a course of action.
Perform a Hotelling T2 Two Sample test to determine if a certain drug has any effect in reducing flue-like symptoms. Use alpha = 0.01.
Prepare a single summary table that shows average and standard deviation of current salary for males and females according to their Position within the company.
What is the new project completion time and what is the new total project cost - Identify what are the time and the path of this minimum cost schedule.
They want to determine whether the program increases the mean traffic.
How many categories in the ACME transportation table are qualitative and what is the average number of merchandise per order, for all orders? Round to the nearest integer and what is the standard deviation of all orders in this sample?
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