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Computing the probability values for the given discrete distribution.
Five people are sick with the flu on a bus of 51 people. You shake hands with 5 different people. What is the probability that you did not shake hands with a person with the flu?
Use the following data to write the normal equations of the linear regression between Y and X, and find the least squares regression.
Letting μ be the mean composite satisfaction rating for the gaming console, we find that the test should be H o : μ ≤ 42 versus H a : μ > 42
Using the appropriate statistical procedure on the SPSS, test the between group means for a significant difference.
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of a pain relief drug is normally distributed with mean 2 hours and standard deviation 0.3 hour.
To test whether the population standard deviation differ significantly using Chi-Square test.
Use normal approximation to determine probability that x = 2. Illustrate all work.
Find the sample size for the 95% confidence interval used to estimate the population proportion.
Set up hypotheses and test to find out whether or not population variance is larger than $100.
Create a 99 percent confidence interval for mean daily intake of milk. You may suppose daily intake amounts are usually distributed.
At a = 0.05, can you reject claim that at least 52% of adults are more probable to purchase a product when there are free samples?
Develop a hypothesis to investigate this problem based on the claim of the heat pump manufacturer
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